./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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/recursive-simple/sum_2x3_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 23:57:04,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:57:04,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:57:04,485 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:57:04,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:57:04,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:57:04,489 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:57:04,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:57:04,500 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:57:04,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:57:04,502 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:57:04,502 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:57:04,503 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:57:04,504 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:57:04,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:57:04,506 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:57:04,507 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:57:04,509 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:57:04,511 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:57:04,513 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:57:04,514 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:57:04,516 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:57:04,518 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:57:04,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:57:04,519 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:57:04,520 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:57:04,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:57:04,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:57:04,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:57:04,524 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:57:04,524 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:57:04,525 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:57:04,525 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:57:04,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:57:04,526 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:57:04,527 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:57:04,527 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:57:04,550 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:57:04,550 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:57:04,551 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:57:04,552 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:57:04,554 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:57:04,554 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:57:04,554 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:57:04,555 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:57:04,556 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:57:04,556 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:57:04,556 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:57:04,556 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:57:04,556 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:57:04,556 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:57:04,557 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:57:04,557 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:57:04,557 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:57:04,557 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:57:04,557 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:57:04,558 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:57:04,559 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:57:04,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:57:04,559 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:57:04,559 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:57:04,560 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:57:04,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:57:04,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:57:04,560 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:57:04,560 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:57:04,561 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:57:04,561 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:57:04,562 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:57:04,562 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5484cff0bd7499490d21ca1aa6f81abc8cec50b0 [2019-01-01 23:57:04,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:57:04,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:57:04,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:57:04,642 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:57:04,643 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:57:04,643 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c [2019-01-01 23:57:04,703 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d1bc4f3/4a9bef15aabe4aca861ca23523d93e24/FLAGf9abc006e [2019-01-01 23:57:05,134 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:57:05,135 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive-simple/sum_2x3_true-unreach-call_true-termination.c [2019-01-01 23:57:05,142 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d1bc4f3/4a9bef15aabe4aca861ca23523d93e24/FLAGf9abc006e [2019-01-01 23:57:05,510 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68d1bc4f3/4a9bef15aabe4aca861ca23523d93e24 [2019-01-01 23:57:05,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:57:05,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:57:05,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:57:05,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:57:05,523 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:57:05,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d23330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05, skipping insertion in model container [2019-01-01 23:57:05,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:57:05,554 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:57:05,769 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:57:05,774 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:57:05,796 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:57:05,815 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:57:05,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05 WrapperNode [2019-01-01 23:57:05,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:57:05,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:57:05,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:57:05,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:57:05,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:57:05,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:57:05,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:57:05,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:57:05,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... [2019-01-01 23:57:05,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:57:05,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:57:05,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:57:05,884 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:57:05,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:57:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:57:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-01-01 23:57:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-01-01 23:57:06,228 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:57:06,229 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-01 23:57:06,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:57:06 BoogieIcfgContainer [2019-01-01 23:57:06,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:57:06,230 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:57:06,230 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:57:06,235 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:57:06,236 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:57:06,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:57:05" (1/3) ... [2019-01-01 23:57:06,238 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7980c6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:57:06, skipping insertion in model container [2019-01-01 23:57:06,238 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:57:06,238 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:57:05" (2/3) ... [2019-01-01 23:57:06,239 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7980c6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:57:06, skipping insertion in model container [2019-01-01 23:57:06,239 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:57:06,240 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:57:06" (3/3) ... [2019-01-01 23:57:06,242 INFO L375 chiAutomizerObserver]: Analyzing ICFG sum_2x3_true-unreach-call_true-termination.c [2019-01-01 23:57:06,306 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:57:06,307 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:57:06,307 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:57:06,307 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:57:06,307 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:57:06,307 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:57:06,307 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:57:06,308 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:57:06,308 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:57:06,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-01 23:57:06,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 23:57:06,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:57:06,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:57:06,362 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:57:06,362 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 23:57:06,362 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:57:06,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-01 23:57:06,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 23:57:06,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:57:06,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:57:06,366 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:57:06,366 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 23:57:06,373 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 2;main_~b~0 := 3; 15#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 8#sumENTRYtrue [2019-01-01 23:57:06,374 INFO L796 eck$LassoCheckResult]: Loop: 8#sumENTRYtrue ~n := #in~n;~m := #in~m; 6#L4true assume !(~n <= 0); 7#L7true call #t~ret0 := sum(~n - 1, 1 + ~m);< 8#sumENTRYtrue [2019-01-01 23:57:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:57:06,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-01-01 23:57:06,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:57:06,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:57:06,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:57:06,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:57:06,494 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-01-01 23:57:06,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:57:06,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:57:06,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:57:06,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:57:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-01-01 23:57:06,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:57:06,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:57:06,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:57:06,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:57:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:57:06,675 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-01 23:57:06,851 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:57:06,852 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:57:06,853 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:57:06,853 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:57:06,853 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 23:57:06,853 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:06,854 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:57:06,854 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:57:06,854 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_2x3_true-unreach-call_true-termination.c_Iteration1_Loop [2019-01-01 23:57:06,854 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:57:06,854 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:57:06,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:06,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:06,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:06,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:06,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:06,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,193 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:57:07,194 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:07,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:57:07,210 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:57:07,230 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 23:57:07,230 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-01 23:57:07,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:57:07,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:57:07,277 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 23:57:07,277 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:07,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:57:07,312 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:07,337 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 23:57:07,337 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:57:07,361 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 23:57:07,363 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:57:07,364 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:57:07,364 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:57:07,364 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:57:07,364 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 23:57:07,364 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:57:07,364 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:57:07,364 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:57:07,365 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_2x3_true-unreach-call_true-termination.c_Iteration1_Loop [2019-01-01 23:57:07,365 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:57:07,365 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:57:07,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:57:07,548 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:57:07,553 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 23:57:07,555 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:57:07,556 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:57:07,556 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:57:07,557 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:57:07,557 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:57:07,558 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:57:07,560 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:57:07,560 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:57:07,565 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 23:57:07,565 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:57:07,566 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:57:07,566 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:57:07,566 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:57:07,567 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:57:07,567 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:57:07,567 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:57:07,568 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:57:07,569 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 23:57:07,570 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:57:07,570 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:57:07,571 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:57:07,571 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:57:07,571 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:57:07,571 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:57:07,572 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:57:07,572 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:57:07,578 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 23:57:07,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 23:57:07,584 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 23:57:07,586 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 23:57:07,586 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 23:57:07,586 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 23:57:07,587 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2019-01-01 23:57:07,588 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 23:57:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:57:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:57:07,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:57:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:57:07,690 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:57:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:57:07,920 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-01-01 23:57:07,922 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-01-01 23:57:08,090 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 29 states and 34 transitions. Complement of second has 12 states. [2019-01-01 23:57:08,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-01 23:57:08,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 23:57:08,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-01-01 23:57:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-01-01 23:57:08,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:57:08,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-01 23:57:08,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:57:08,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-01-01 23:57:08,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:57:08,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-01-01 23:57:08,102 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:57:08,105 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-01-01 23:57:08,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 23:57:08,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 23:57:08,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 23:57:08,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:57:08,107 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:57:08,108 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:57:08,108 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:57:08,108 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:57:08,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 23:57:08,108 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:57:08,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 23:57:08,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:57:08 BoogieIcfgContainer [2019-01-01 23:57:08,116 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:57:08,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:57:08,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:57:08,117 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:57:08,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:57:06" (3/4) ... [2019-01-01 23:57:08,122 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 23:57:08,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:57:08,123 INFO L168 Benchmark]: Toolchain (without parser) took 2607.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -80.4 MB). Peak memory consumption was 61.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:57:08,125 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:57:08,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.42 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:57:08,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.73 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:57:08,127 INFO L168 Benchmark]: Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:57:08,127 INFO L168 Benchmark]: RCFGBuilder took 346.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:57:08,128 INFO L168 Benchmark]: BuchiAutomizer took 1886.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.3 MB). Peak memory consumption was 88.3 MB. Max. memory is 11.5 GB. [2019-01-01 23:57:08,129 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:57:08,138 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.42 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.73 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 346.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1886.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.3 MB). Peak memory consumption was 88.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...