./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/PastaB15_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/PastaB15_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 3ccb58682df62cf013193e768e6367e3efc261e2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:16:27,250 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:16:27,252 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:16:27,271 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:16:27,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:16:27,274 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:16:27,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:16:27,282 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:16:27,286 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:16:27,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:16:27,293 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:16:27,294 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:16:27,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:16:27,298 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:16:27,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:16:27,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:16:27,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:16:27,315 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:16:27,321 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:16:27,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:16:27,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:16:27,326 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:16:27,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:16:27,330 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:16:27,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:16:27,331 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:16:27,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:16:27,337 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:16:27,338 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:16:27,341 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:16:27,342 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:16:27,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:16:27,343 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:16:27,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:16:27,344 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:16:27,348 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:16:27,349 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:16:27,370 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:16:27,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:16:27,374 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:16:27,374 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:16:27,374 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:16:27,374 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:16:27,375 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:16:27,377 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:16:27,377 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:16:27,377 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:16:27,377 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:16:27,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:16:27,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:16:27,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:16:27,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:16:27,379 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:16:27,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:16:27,379 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:16:27,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:16:27,379 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:16:27,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:16:27,380 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:16:27,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:16:27,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:16:27,380 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:16:27,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:16:27,384 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:16:27,384 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:16:27,385 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:16:27,386 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 -> 3ccb58682df62cf013193e768e6367e3efc261e2 [2018-11-28 23:16:27,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:16:27,461 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:16:27,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:16:27,470 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:16:27,471 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:16:27,472 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c [2018-11-28 23:16:27,543 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4547872ca/b3df74d728eb494783a5fb0d46753866/FLAG4f62418c8 [2018-11-28 23:16:28,041 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:16:28,042 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/PastaB15_true-termination_true-no-overflow.c [2018-11-28 23:16:28,050 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4547872ca/b3df74d728eb494783a5fb0d46753866/FLAG4f62418c8 [2018-11-28 23:16:28,393 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4547872ca/b3df74d728eb494783a5fb0d46753866 [2018-11-28 23:16:28,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:16:28,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:16:28,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:28,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:16:28,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:16:28,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ebed1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28, skipping insertion in model container [2018-11-28 23:16:28,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:16:28,439 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:16:28,660 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:28,667 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:16:28,691 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:28,708 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:16:28,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28 WrapperNode [2018-11-28 23:16:28,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:28,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:28,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:16:28,711 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:16:28,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:28,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:16:28,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:16:28,758 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:16:28,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (1/1) ... [2018-11-28 23:16:28,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:16:28,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:16:28,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:16:28,796 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:16:28,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (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 23:16:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:16:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:16:29,128 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:16:29,129 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 23:16:29,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:29 BoogieIcfgContainer [2018-11-28 23:16:29,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:16:29,131 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:16:29,131 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:16:29,136 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:16:29,137 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:29,137 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:16:28" (1/3) ... [2018-11-28 23:16:29,138 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@463ee9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:29, skipping insertion in model container [2018-11-28 23:16:29,138 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:29,138 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:28" (2/3) ... [2018-11-28 23:16:29,139 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@463ee9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:29, skipping insertion in model container [2018-11-28 23:16:29,139 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:29,139 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:29" (3/3) ... [2018-11-28 23:16:29,141 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaB15_true-termination_true-no-overflow.c [2018-11-28 23:16:29,206 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:16:29,207 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:16:29,207 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:16:29,207 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:16:29,208 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:16:29,208 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:16:29,208 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:16:29,208 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:16:29,209 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:16:29,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 23:16:29,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:16:29,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:29,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:29,257 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:29,258 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:16:29,258 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:16:29,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 23:16:29,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:16:29,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:29,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:29,260 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:29,260 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:16:29,269 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L14-3true [2018-11-28 23:16:29,270 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 6#L14-2true assume !(main_~y~0 > main_~z~0); 4#L14-3true [2018-11-28 23:16:29,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:16:29,280 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:29,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:29,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:29,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:29,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2018-11-28 23:16:29,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:29,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:29,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:29,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:29,510 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 23:16:29,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:16:29,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 23:16:29,518 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:16:29,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:16:29,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:16:29,537 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-11-28 23:16:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:16:29,581 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-11-28 23:16:29,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:16:29,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-28 23:16:29,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:29,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2018-11-28 23:16:29,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 23:16:29,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:16:29,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2018-11-28 23:16:29,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:29,596 INFO L705 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 23:16:29,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2018-11-28 23:16:29,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-11-28 23:16:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:16:29,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-11-28 23:16:29,640 INFO L728 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 23:16:29,640 INFO L608 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2018-11-28 23:16:29,641 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:16:29,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2018-11-28 23:16:29,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:16:29,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:29,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:29,643 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:29,643 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:29,643 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 25#L14-3 [2018-11-28 23:16:29,643 INFO L796 eck$LassoCheckResult]: Loop: 25#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 26#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L14-2 assume !(main_~y~0 > main_~z~0); 25#L14-3 [2018-11-28 23:16:29,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:29,645 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 23:16:29,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:29,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:29,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:29,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:29,657 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2018-11-28 23:16:29,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:29,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:29,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,660 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:29,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:29,685 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2018-11-28 23:16:29,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:29,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:29,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:29,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:29,890 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-11-28 23:16:29,953 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:29,955 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:29,955 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:29,955 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:29,955 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:29,955 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:29,956 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:29,956 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:29,956 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:29,956 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:29,956 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:29,977 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 23:16:29,986 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 23:16:29,991 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 23:16:30,405 WARN L180 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-11-28 23:16:30,524 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:30,525 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 23:16:30,531 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:30,531 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:30,559 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:30,559 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 23:16:30,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:30,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:30,586 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:30,587 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 23:16:30,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:30,591 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 23:16:30,623 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:30,623 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:30,967 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:30,970 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:30,970 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:30,970 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:30,970 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:30,970 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:30,971 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:30,971 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:30,971 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:30,971 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:30,971 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:30,971 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:30,974 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 23:16:30,979 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 23:16:30,983 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 23:16:31,184 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-11-28 23:16:31,227 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:31,234 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:31,236 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 23:16:31,238 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:31,238 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:31,238 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:31,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:31,244 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:31,244 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:31,251 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:31,252 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 23:16:31,253 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:31,253 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:31,253 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:31,253 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:31,256 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:31,257 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:31,267 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:31,268 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 23:16:31,269 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:31,269 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:31,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:31,270 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:31,270 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:31,272 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:31,272 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:31,283 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:31,305 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:16:31,306 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:31,308 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:31,309 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:31,309 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:31,310 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 23:16:31,312 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:31,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:31,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:31,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:31,571 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 23:16:31,572 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-28 23:16:31,631 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2018-11-28 23:16:31,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:16:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 23:16:31,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 23:16:31,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:31,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:16:31,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:31,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 23:16:31,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:31,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-11-28 23:16:31,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:31,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2018-11-28 23:16:31,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 23:16:31,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:16:31,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 23:16:31,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:31,646 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:16:31,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 23:16:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-28 23:16:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:16:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 23:16:31,649 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:16:31,650 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:16:31,650 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:16:31,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 23:16:31,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:16:31,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:31,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:31,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-28 23:16:31,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:16:31,653 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 77#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 78#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 81#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2018-11-28 23:16:31,653 INFO L796 eck$LassoCheckResult]: Loop: 80#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 [2018-11-28 23:16:31,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:31,654 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2018-11-28 23:16:31,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:31,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:31,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:31,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:31,679 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 23:16:31,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:31,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:31,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:31,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:31,686 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2018-11-28 23:16:31,687 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:31,687 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:31,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:31,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:31,768 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:31,768 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:31,768 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:31,768 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:31,769 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:31,769 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:31,769 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:31,769 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:31,769 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:31,769 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:31,769 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:31,771 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 23:16:31,784 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 23:16:31,791 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 23:16:31,797 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 23:16:32,147 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:16:32,347 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:32,348 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:32,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:32,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:32,391 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:32,391 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 23:16:32,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:32,398 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 23:16:32,422 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:32,422 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:32,438 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:32,439 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 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 23:16:32,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:32,462 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:32,482 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:32,482 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 23:16:32,488 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:32,488 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 23:16:32,536 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:32,536 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:32,712 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:32,715 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:32,715 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:32,715 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:32,715 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:32,715 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:32,715 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:32,716 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:32,716 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:32,716 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaB15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:32,716 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:32,716 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:32,719 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 23:16:32,724 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 23:16:32,727 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 23:16:32,733 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 23:16:32,903 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:32,903 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:32,904 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:32,905 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:32,905 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:32,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:32,905 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:32,908 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:32,908 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:32,915 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:32,917 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:16:32,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:32,920 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:32,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:32,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:32,921 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:32,922 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:32,922 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:32,928 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:32,929 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 23:16:32,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:32,934 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:32,934 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:32,934 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:32,938 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:32,938 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:32,944 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:32,945 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 23:16:32,946 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:32,946 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:32,946 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:32,946 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:32,946 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:32,947 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:32,947 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:32,960 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:32,969 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:32,969 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:32,973 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:32,973 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:32,973 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:32,973 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 23:16:32,974 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:33,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:33,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:33,034 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:33,035 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 23:16:33,035 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 23:16:33,035 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 23:16:33,055 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2018-11-28 23:16:33,056 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 23:16:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:16:33,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 23:16:33,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:16:33,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:33,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 23:16:33,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:33,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:16:33,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:33,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2018-11-28 23:16:33,059 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:33,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-28 23:16:33,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:16:33,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:16:33,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:16:33,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:33,060 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:33,060 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:33,060 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:33,060 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:16:33,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:16:33,060 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:33,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:16:33,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:16:33 BoogieIcfgContainer [2018-11-28 23:16:33,067 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:16:33,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:16:33,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:16:33,068 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:16:33,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:29" (3/4) ... [2018-11-28 23:16:33,073 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:16:33,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:16:33,074 INFO L168 Benchmark]: Toolchain (without parser) took 4676.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 948.7 MB in the beginning and 937.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 134.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:33,076 INFO L168 Benchmark]: CDTParser took 0.62 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 23:16:33,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.26 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:33,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:33,078 INFO L168 Benchmark]: Boogie Preprocessor took 37.50 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:33,078 INFO L168 Benchmark]: RCFGBuilder took 334.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:33,080 INFO L168 Benchmark]: BuchiAutomizer took 3936.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.0 MB in the end (delta: 170.8 MB). Peak memory consumption was 170.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:33,080 INFO L168 Benchmark]: Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:33,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 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 309.26 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.50 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 334.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3936.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.0 MB in the end (delta: 170.8 MB). Peak memory consumption was 170.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.45 ms. Allocated memory is still 1.2 GB. Free memory is still 937.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...