./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-restricted-15/LogAG_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 81a46fe8790e1f522cb67a9c253c8a7e6828f982 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:16:07,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:16:07,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:16:07,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:16:07,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:16:07,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:16:07,410 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:16:07,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:16:07,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:16:07,416 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:16:07,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:16:07,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:16:07,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:16:07,420 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:16:07,421 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:16:07,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:16:07,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:16:07,425 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:16:07,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:16:07,429 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:16:07,430 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:16:07,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:16:07,434 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:16:07,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:16:07,435 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:16:07,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:16:07,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:16:07,438 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:16:07,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:16:07,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:16:07,441 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:16:07,442 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:16:07,442 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:16:07,442 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:16:07,443 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:16:07,444 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:16:07,444 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:16:07,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:16:07,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:16:07,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:16:07,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:16:07,466 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:16:07,466 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:16:07,467 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:16:07,467 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:16:07,467 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:16:07,467 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:16:07,467 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:16:07,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:16:07,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:16:07,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:16:07,470 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:16:07,470 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:16:07,471 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:16:07,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:16:07,471 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:16:07,471 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:16:07,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:16:07,472 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:16:07,473 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:16:07,474 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:16:07,474 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 -> 81a46fe8790e1f522cb67a9c253c8a7e6828f982 [2018-11-28 23:16:07,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:16:07,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:16:07,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:16:07,533 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:16:07,533 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:16:07,535 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-28 23:16:07,601 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33b69332f/268af5c1749b422187c9e31cce0f88f5/FLAG6addee8eb [2018-11-28 23:16:08,107 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:16:08,108 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/LogAG_true-termination_true-no-overflow.c [2018-11-28 23:16:08,114 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33b69332f/268af5c1749b422187c9e31cce0f88f5/FLAG6addee8eb [2018-11-28 23:16:08,441 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33b69332f/268af5c1749b422187c9e31cce0f88f5 [2018-11-28 23:16:08,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:16:08,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:16:08,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:08,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:16:08,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:16:08,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b87525c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08, skipping insertion in model container [2018-11-28 23:16:08,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:16:08,491 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:16:08,732 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:08,737 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:16:08,762 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:08,779 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:16:08,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08 WrapperNode [2018-11-28 23:16:08,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:08,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:08,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:16:08,781 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:16:08,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:08,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:16:08,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:16:08,829 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:16:08,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... [2018-11-28 23:16:08,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:16:08,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:16:08,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:16:08,858 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:16:08,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:16:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:16:09,217 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:16:09,217 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 23:16:09,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:09 BoogieIcfgContainer [2018-11-28 23:16:09,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:16:09,219 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:16:09,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:16:09,225 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:16:09,226 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:09,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:16:08" (1/3) ... [2018-11-28 23:16:09,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3a219f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:09, skipping insertion in model container [2018-11-28 23:16:09,228 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:09,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:08" (2/3) ... [2018-11-28 23:16:09,229 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3a219f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:09, skipping insertion in model container [2018-11-28 23:16:09,229 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:09,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:09" (3/3) ... [2018-11-28 23:16:09,233 INFO L375 chiAutomizerObserver]: Analyzing ICFG LogAG_true-termination_true-no-overflow.c [2018-11-28 23:16:09,338 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:16:09,339 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:16:09,339 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:16:09,339 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:16:09,340 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:16:09,340 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:16:09,340 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:16:09,340 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:16:09,340 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:16:09,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:16:09,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:09,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:09,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:09,417 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:09,417 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:09,417 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:16:09,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:16:09,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:09,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:09,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:09,420 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:09,420 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:09,432 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2018-11-28 23:16:09,435 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2018-11-28 23:16:09,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,448 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:16:09,454 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:09,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:09,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:09,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,610 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 23:16:09,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:09,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:09,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:09,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,636 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-28 23:16:09,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:09,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:09,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:09,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,817 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:09,819 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:09,819 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:09,819 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:09,819 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:09,820 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,820 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:09,820 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:09,820 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:16:09,820 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:09,821 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:09,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,265 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 23:16:10,303 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:10,304 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,339 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:10,339 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,346 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,369 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:10,369 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,376 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,376 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:10,406 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,710 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:10,712 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:10,712 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:10,713 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:10,713 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:10,713 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:10,713 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,713 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:10,713 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:10,714 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:16:10,714 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:10,714 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:10,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:11,007 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:11,012 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:11,014 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:11,016 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:11,016 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:11,017 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:11,017 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:11,024 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:11,024 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:11,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:11,044 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:11,049 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:11,049 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:11,050 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:11,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:11,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:11,051 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:11,053 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:11,057 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:11,057 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:11,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:11,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:11,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:11,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:11,063 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:11,063 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:11,087 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:11,087 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:11,088 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:11,089 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:11,089 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:11,089 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:11,089 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:11,090 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:11,090 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:11,103 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:11,104 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:11,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:11,105 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:11,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:11,106 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:11,106 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:11,107 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:11,107 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:11,117 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:11,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:11,123 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:11,126 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:11,126 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:11,126 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:11,127 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:16:11,129 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:11,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:11,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:11,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:11,350 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:16:11,352 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:16:11,471 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-28 23:16:11,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 23:16:11,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 23:16:11,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:16:11,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 23:16:11,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-28 23:16:11,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:11,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 23:16:11,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:16:11,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:16:11,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 23:16:11,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:11,493 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:16:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 23:16:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-28 23:16:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:16:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-28 23:16:11,526 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:16:11,526 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 23:16:11,526 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:16:11,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-28 23:16:11,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:11,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:11,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:11,528 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:16:11,528 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:16:11,528 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 75#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 71#L17-2 [2018-11-28 23:16:11,529 INFO L796 eck$LassoCheckResult]: Loop: 71#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 71#L17-2 [2018-11-28 23:16:11,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:11,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:16:11,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:11,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:11,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:11,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:11,539 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 23:16:11,540 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:11,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:11,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:11,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:11,548 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 23:16:11,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:11,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:11,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:11,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:11,612 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:11,612 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:11,612 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:11,613 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:11,613 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:11,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:11,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:11,614 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:11,614 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:11,614 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:11,614 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:11,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:11,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:11,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:11,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,170 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:12,170 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:16:12,175 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:12,176 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,200 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:12,200 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,205 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:12,205 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:12,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:12,245 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:12,245 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=0}, {ULTIMATE.start_main_~restmp~0=-5}, {ULTIMATE.start_main_~restmp~0=6}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:12,268 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:12,288 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:12,289 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:12,295 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:12,326 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:12,349 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:12,351 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:12,351 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:12,351 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:12,351 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:12,352 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:12,352 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,352 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:12,352 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:12,353 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:12,353 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:12,353 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:12,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,547 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:12,548 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:12,549 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:12,550 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:12,550 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:12,550 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:12,550 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:12,554 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:12,554 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:12,559 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:12,560 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:12,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:12,562 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:12,562 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:12,563 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:12,563 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:12,564 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:12,564 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:12,568 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:12,569 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:12,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:12,571 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:12,571 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:12,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:12,574 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:12,574 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:12,580 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:12,580 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:12,581 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:12,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:12,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:12,582 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:12,582 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:12,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:12,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:12,589 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:12,594 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:12,594 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:12,594 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:12,595 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:12,595 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:12,595 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-28 23:16:12,595 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:12,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:12,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:12,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:12,691 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:16:12,692 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 23:16:12,716 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-28 23:16:12,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:16:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:16:12,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 23:16:12,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:12,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:16:12,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:12,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:16:12,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:12,722 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-28 23:16:12,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:12,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-28 23:16:12,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:16:12,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 23:16:12,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 23:16:12,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:12,726 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 23:16:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 23:16:12,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-28 23:16:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:16:12,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 23:16:12,727 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:16:12,728 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:16:12,728 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:16:12,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-28 23:16:12,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:12,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:12,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:12,729 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 23:16:12,729 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:16:12,730 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 123#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 120#L17-2 assume !(main_~xtmp~0 > 1); 121#L17-3 main_~x~0 := 1 + main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 124#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0 - 2;main_~restmp~0 := 0; 119#L17-2 [2018-11-28 23:16:12,730 INFO L796 eck$LassoCheckResult]: Loop: 119#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 119#L17-2 [2018-11-28 23:16:12,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:12,730 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-28 23:16:12,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:12,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:12,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:12,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:12,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:12,743 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-28 23:16:12,743 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:12,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:12,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,745 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:12,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:12,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:12,750 INFO L82 PathProgramCache]: Analyzing trace with hash 925896921, now seen corresponding path program 1 times [2018-11-28 23:16:12,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:12,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:12,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,751 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:12,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:12,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:16:12,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:16:12,873 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:12,873 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:12,873 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:12,873 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:12,874 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:12,874 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,874 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:12,874 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:12,874 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:12,874 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:12,874 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:12,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:12,979 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:12,979 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:12,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:12,989 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:13,010 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:13,011 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:13,016 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:13,016 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:13,037 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:13,037 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:13,044 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:13,044 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:13,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:13,069 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:13,092 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:13,094 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:13,094 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:13,094 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:13,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:13,094 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:13,094 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:13,094 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:13,095 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:13,095 INFO L131 ssoRankerPreferences]: Filename of dumped script: LogAG_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:13,095 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:13,095 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:13,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:13,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:13,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:13,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:13,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:13,307 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:13,308 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:13,309 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:13,309 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:13,309 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:13,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:13,311 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:13,311 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:13,316 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:13,317 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:13,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:13,318 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:13,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:13,318 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:13,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:13,319 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:13,319 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:13,322 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:13,325 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:13,325 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:13,326 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:13,326 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:13,326 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:13,326 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-28 23:16:13,326 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:13,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:13,378 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:16:13,378 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:16:13,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 23:16:13,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:16:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:16:13,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:16:13,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:13,409 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:16:13,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:13,476 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:16:13,476 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:16:13,488 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 23:16:13,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:13,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:16:13,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 23:16:13,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:16:13,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:13,490 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:16:13,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:13,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:13,531 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:16:13,531 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 23:16:13,549 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-11-28 23:16:13,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:16:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 23:16:13,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:16:13,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:13,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 23:16:13,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:13,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:16:13,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:13,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-11-28 23:16:13,554 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:13,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-28 23:16:13,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:16:13,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:16:13,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:16:13,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:13,555 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:13,555 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:13,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:16:13,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:16:13,561 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 23:16:13,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:16:13,564 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:16:13,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:16:13,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:16:13,565 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:13,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:16:13,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:16:13,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:16:13,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:16:13,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:13,565 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:13,566 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:13,566 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:13,566 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:16:13,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:16:13,566 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:13,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:16:13,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:16:13 BoogieIcfgContainer [2018-11-28 23:16:13,573 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:16:13,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:16:13,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:16:13,574 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:16:13,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:09" (3/4) ... [2018-11-28 23:16:13,578 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:16:13,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:16:13,579 INFO L168 Benchmark]: Toolchain (without parser) took 5130.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 954.0 MB in the beginning and 831.7 MB in the end (delta: 122.4 MB). Peak memory consumption was 218.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:13,581 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. [2018-11-28 23:16:13,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:13,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:13,583 INFO L168 Benchmark]: Boogie Preprocessor took 29.39 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:13,583 INFO L168 Benchmark]: RCFGBuilder took 360.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:13,585 INFO L168 Benchmark]: BuchiAutomizer took 4354.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 831.7 MB in the end (delta: 242.9 MB). Peak memory consumption was 242.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:13,586 INFO L168 Benchmark]: Witness Printer took 4.36 ms. Allocated memory is still 1.1 GB. Free memory is still 831.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:13,591 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 327.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.39 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 360.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4354.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 831.7 MB in the end (delta: 242.9 MB). Peak memory consumption was 242.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 ms. Allocated memory is still 1.1 GB. Free memory is still 831.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 23 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax168 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...