./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:19:54,051 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:19:54,052 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:19:54,068 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:19:54,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:19:54,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:19:54,071 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:19:54,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:19:54,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:19:54,076 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:19:54,077 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:19:54,077 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:19:54,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:19:54,080 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:19:54,081 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:19:54,082 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:19:54,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:19:54,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:19:54,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:19:54,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:19:54,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:19:54,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:19:54,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:19:54,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:19:54,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:19:54,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:19:54,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:19:54,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:19:54,099 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:19:54,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:19:54,101 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:19:54,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:19:54,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:19:54,102 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:19:54,103 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:19:54,104 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:19:54,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:19:54,126 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:19:54,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:19:54,128 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:19:54,129 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:19:54,129 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:19:54,130 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:19:54,130 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:19:54,130 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:19:54,130 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:19:54,130 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:19:54,131 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:19:54,131 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:19:54,132 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:19:54,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:19:54,133 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:19:54,133 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:19:54,133 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:19:54,133 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:19:54,133 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:19:54,134 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:19:54,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:19:54,136 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:19:54,136 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:19:54,137 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:19:54,138 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2019-01-14 02:19:54,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:19:54,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:19:54,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:19:54,212 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:19:54,213 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:19:54,214 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c [2019-01-14 02:19:54,289 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5acce09/5809b2b1cfc74d6693a478fea1afbe9b/FLAGac983474c [2019-01-14 02:19:54,786 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:19:54,787 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/PastaB14_true-termination_true-no-overflow.c [2019-01-14 02:19:54,791 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5acce09/5809b2b1cfc74d6693a478fea1afbe9b/FLAGac983474c [2019-01-14 02:19:55,113 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5acce09/5809b2b1cfc74d6693a478fea1afbe9b [2019-01-14 02:19:55,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:19:55,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:19:55,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:19:55,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:19:55,125 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:19:55,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b6b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55, skipping insertion in model container [2019-01-14 02:19:55,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:19:55,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:19:55,393 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:19:55,398 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:19:55,419 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:19:55,435 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:19:55,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55 WrapperNode [2019-01-14 02:19:55,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:19:55,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:19:55,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:19:55,437 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:19:55,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:19:55,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:19:55,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:19:55,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:19:55,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (1/1) ... [2019-01-14 02:19:55,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:19:55,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:19:55,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:19:55,494 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:19:55,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (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 02:19:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:19:55,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:19:55,780 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:19:55,781 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-14 02:19:55,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:19:55 BoogieIcfgContainer [2019-01-14 02:19:55,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:19:55,783 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:19:55,783 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:19:55,786 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:19:55,787 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:19:55,787 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:19:55" (1/3) ... [2019-01-14 02:19:55,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4de2b02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:19:55, skipping insertion in model container [2019-01-14 02:19:55,789 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:19:55,789 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:19:55" (2/3) ... [2019-01-14 02:19:55,789 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4de2b02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:19:55, skipping insertion in model container [2019-01-14 02:19:55,789 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:19:55,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:19:55" (3/3) ... [2019-01-14 02:19:55,791 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB14_true-termination_true-no-overflow.c [2019-01-14 02:19:55,853 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:19:55,854 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:19:55,854 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:19:55,854 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:19:55,854 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:19:55,854 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:19:55,855 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:19:55,855 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:19:55,855 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:19:55,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:19:55,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:19:55,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:19:55,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:19:55,896 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:19:55,897 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:19:55,897 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:19:55,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:19:55,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:19:55,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:19:55,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:19:55,899 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:19:55,899 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:19:55,907 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2019-01-14 02:19:55,907 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-01-14 02:19:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-14 02:19:55,916 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:19:55,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:19:55,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:55,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:19:55,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:56,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-01-14 02:19:56,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:19:56,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:19:56,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:19:56,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:19:56,117 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 02:19:56,120 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 02:19:56,120 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 02:19:56,127 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 02:19:56,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 02:19:56,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 02:19:56,161 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-14 02:19:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 02:19:56,244 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-14 02:19:56,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 02:19:56,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-01-14 02:19:56,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:19:56,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-01-14 02:19:56,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-14 02:19:56,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-01-14 02:19:56,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-01-14 02:19:56,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:19:56,256 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-14 02:19:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-01-14 02:19:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-01-14 02:19:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-14 02:19:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-01-14 02:19:56,293 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-14 02:19:56,293 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-14 02:19:56,293 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:19:56,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-01-14 02:19:56,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:19:56,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:19:56,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:19:56,295 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:19:56,296 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 02:19:56,296 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2019-01-14 02:19:56,296 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-01-14 02:19:56,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:56,297 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-01-14 02:19:56,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:19:56,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:19:56,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:19:56,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:56,312 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-01-14 02:19:56,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:19:56,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:19:56,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,314 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 02:19:56,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:56,327 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-01-14 02:19:56,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:19:56,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:19:56,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:19:56,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:19:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:19:56,470 WARN L181 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2019-01-14 02:19:56,505 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:19:56,506 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:19:56,507 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:19:56,507 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:19:56,507 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:19:56,507 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:19:56,507 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:19:56,507 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:19:56,507 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-14 02:19:56,508 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:19:56,508 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:19:56,526 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 02:19:56,534 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 02:19:56,538 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 02:19:56,876 WARN L181 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-01-14 02:19:56,984 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:19:56,985 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 02:19:56,990 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:19:56,990 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:19:57,015 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:19:57,015 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:19:57,026 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:19:57,027 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:19:57,048 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:19:57,049 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:19:57,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:19:57,053 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:19:57,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:19:57,084 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:19:57,124 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 02:19:57,127 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:19:57,127 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:19:57,127 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:19:57,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:19:57,127 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:19:57,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:19:57,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:19:57,128 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:19:57,128 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB14_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-14 02:19:57,128 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:19:57,128 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:19:57,131 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 02:19:57,137 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 02:19:57,142 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 02:19:57,317 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-01-14 02:19:57,360 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:19:57,365 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:19:57,367 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 02:19:57,368 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:19:57,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:19:57,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:19:57,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:19:57,373 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:19:57,373 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:19:57,385 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:19:57,386 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 02:19:57,387 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:19:57,387 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:19:57,387 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:19:57,387 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:19:57,390 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:19:57,390 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:19:57,399 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:19:57,400 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 02:19:57,401 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:19:57,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:19:57,402 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:19:57,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:19:57,402 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:19:57,403 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:19:57,403 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:19:57,413 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:19:57,420 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 02:19:57,421 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 02:19:57,423 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:19:57,423 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 02:19:57,423 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:19:57,424 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-01-14 02:19:57,425 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 02:19:57,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:19:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:19:57,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:19:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:19:57,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:19:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:19:57,573 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 [2019-01-14 02:19:57,574 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-01-14 02:19:57,689 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 8 states and 9 transitions. Complement of second has 6 states. [2019-01-14 02:19:57,691 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 02:19:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-14 02:19:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-01-14 02:19:57,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 3 letters. [2019-01-14 02:19:57,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:19:57,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 3 letters. [2019-01-14 02:19:57,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:19:57,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 1 letters. Loop has 6 letters. [2019-01-14 02:19:57,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:19:57,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-01-14 02:19:57,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:19:57,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-01-14 02:19:57,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:19:57,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:19:57,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:19:57,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:19:57,698 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:19:57,699 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:19:57,699 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:19:57,699 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 02:19:57,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:19:57,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:19:57,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:19:57,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:19:57 BoogieIcfgContainer [2019-01-14 02:19:57,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:19:57,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:19:57,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:19:57,709 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:19:57,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:19:55" (3/4) ... [2019-01-14 02:19:57,713 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:19:57,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:19:57,714 INFO L168 Benchmark]: Toolchain (without parser) took 2596.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.7 MB in the beginning and 995.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2019-01-14 02:19:57,718 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:19:57,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:19:57,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.89 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:19:57,721 INFO L168 Benchmark]: Boogie Preprocessor took 19.67 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:19:57,721 INFO L168 Benchmark]: RCFGBuilder took 287.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-14 02:19:57,722 INFO L168 Benchmark]: BuchiAutomizer took 1925.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. [2019-01-14 02:19:57,724 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 1.2 GB. Free memory is still 995.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:19:57,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 315.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 36.89 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.67 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 287.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -157.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1925.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 97.1 MB). Peak memory consumption was 97.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.90 ms. Allocated memory is still 1.2 GB. Free memory is still 995.3 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. 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 4 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf97 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp85 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...