./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.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 9f15d52494f2bb20316f0c01d603c20e3274fba8 ......................................................................................................................................................................................................................................................... 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 21:33:07,611 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:33:07,613 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:33:07,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:33:07,631 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:33:07,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:33:07,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:33:07,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:33:07,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:33:07,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:33:07,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:33:07,640 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:33:07,641 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:33:07,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:33:07,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:33:07,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:33:07,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:33:07,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:33:07,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:33:07,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:33:07,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:33:07,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:33:07,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:33:07,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:33:07,656 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:33:07,658 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:33:07,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:33:07,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:33:07,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:33:07,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:33:07,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:33:07,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:33:07,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:33:07,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:33:07,665 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:33:07,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:33:07,666 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:33:07,700 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:33:07,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:33:07,702 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:33:07,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:33:07,704 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:33:07,704 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:33:07,704 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:33:07,705 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:33:07,705 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:33:07,705 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:33:07,705 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:33:07,705 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:33:07,705 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:33:07,706 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:33:07,706 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:33:07,706 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:33:07,706 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:33:07,706 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:33:07,707 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:33:07,709 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:33:07,710 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:33:07,710 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:33:07,710 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:33:07,710 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:33:07,710 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:33:07,711 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:33:07,711 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:33:07,711 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:33:07,716 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:33:07,717 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 -> 9f15d52494f2bb20316f0c01d603c20e3274fba8 [2019-01-01 21:33:07,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:33:07,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:33:07,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:33:07,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:33:07,796 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:33:07,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-01 21:33:07,873 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58a18267/747d7ac8adb446daa9433ff1a1c420ca/FLAGaf41b5076 [2019-01-01 21:33:08,391 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:33:08,392 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-01 21:33:08,399 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58a18267/747d7ac8adb446daa9433ff1a1c420ca/FLAGaf41b5076 [2019-01-01 21:33:08,740 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58a18267/747d7ac8adb446daa9433ff1a1c420ca [2019-01-01 21:33:08,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:33:08,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:33:08,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:33:08,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:33:08,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:33:08,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:33:08" (1/1) ... [2019-01-01 21:33:08,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e82e0dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:08, skipping insertion in model container [2019-01-01 21:33:08,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:33:08" (1/1) ... [2019-01-01 21:33:08,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:33:08,784 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:33:09,007 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:33:09,013 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:33:09,032 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:33:09,049 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:33:09,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09 WrapperNode [2019-01-01 21:33:09,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:33:09,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:33:09,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:33:09,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:33:09,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:33:09,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:33:09,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:33:09,098 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:33:09,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (1/1) ... [2019-01-01 21:33:09,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:33:09,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:33:09,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:33:09,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:33:09,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (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 21:33:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:33:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:33:09,510 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:33:09,511 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 21:33:09,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:09 BoogieIcfgContainer [2019-01-01 21:33:09,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:33:09,512 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:33:09,512 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:33:09,520 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:33:09,521 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:09,521 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:33:08" (1/3) ... [2019-01-01 21:33:09,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472792a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:33:09, skipping insertion in model container [2019-01-01 21:33:09,523 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:09,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:09" (2/3) ... [2019-01-01 21:33:09,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472792a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:33:09, skipping insertion in model container [2019-01-01 21:33:09,524 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:09,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:09" (3/3) ... [2019-01-01 21:33:09,527 INFO L375 chiAutomizerObserver]: Analyzing ICFG WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-01 21:33:09,605 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:33:09,605 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:33:09,606 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:33:09,606 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:33:09,606 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:33:09,606 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:33:09,606 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:33:09,606 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:33:09,607 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:33:09,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-01 21:33:09,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:09,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:09,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:09,662 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:33:09,662 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:09,662 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:33:09,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-01 21:33:09,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:09,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:09,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:09,665 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:33:09,665 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:09,674 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res; 6#L14-2true [2019-01-01 21:33:09,675 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2019-01-01 21:33:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:09,683 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 21:33:09,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:09,687 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:09,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:09,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:09,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-01-01 21:33:09,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:09,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:09,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:09,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:09,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:09,843 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 21:33:09,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:33:09,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2019-01-01 21:33:09,853 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 21:33:09,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-01 21:33:09,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-01 21:33:09,878 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2019-01-01 21:33:09,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:33:09,889 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-01-01 21:33:09,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-01 21:33:09,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2019-01-01 21:33:09,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:33:09,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2019-01-01 21:33:09,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:33:09,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:33:09,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:33:09,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:33:09,900 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:09,900 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:09,901 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:09,901 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:33:09,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:33:09,901 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:33:09,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:33:09,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:33:09 BoogieIcfgContainer [2019-01-01 21:33:09,909 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:33:09,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:33:09,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:33:09,910 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:33:09,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:09" (3/4) ... [2019-01-01 21:33:09,914 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:33:09,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:33:09,915 INFO L168 Benchmark]: Toolchain (without parser) took 1169.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -98.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:09,917 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:09,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:09,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:09,921 INFO L168 Benchmark]: Boogie Preprocessor took 31.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:09,926 INFO L168 Benchmark]: RCFGBuilder took 381.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:09,927 INFO L168 Benchmark]: BuchiAutomizer took 397.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:09,928 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:09,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.99 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 46.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 381.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -130.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 397.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.98 ms. Allocated memory is still 1.1 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 (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...