./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 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-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 0.1.24-91b1670 [2018-11-28 23:14:36,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:14:36,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:14:36,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:14:36,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:14:36,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:14:36,658 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:14:36,661 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:14:36,663 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:14:36,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:14:36,665 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:14:36,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:14:36,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:14:36,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:14:36,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:14:36,671 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:14:36,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:14:36,674 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:14:36,676 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:14:36,678 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:14:36,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:14:36,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:14:36,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:14:36,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:14:36,684 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:14:36,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:14:36,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:14:36,688 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:14:36,689 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:14:36,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:14:36,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:14:36,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:14:36,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:14:36,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:14:36,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:14:36,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:14:36,694 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:14:36,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:14:36,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:14:36,721 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:14:36,722 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:14:36,722 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:14:36,722 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:14:36,722 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:14:36,722 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:14:36,727 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:14:36,728 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:14:36,728 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:14:36,728 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:14:36,728 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:14:36,729 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:14:36,730 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:14:36,730 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:14:36,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:14:36,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:14:36,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:14:36,730 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:14:36,734 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:14:36,734 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:14:36,734 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:14:36,735 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:14:36,735 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 [2018-11-28 23:14:36,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:14:36,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:14:36,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:14:36,811 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:14:36,811 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:14:36,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:14:36,877 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46984631b/a24a350cbeab41f6921d2442fa384fb8/FLAGcc1888d69 [2018-11-28 23:14:37,353 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:14:37,353 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:14:37,360 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46984631b/a24a350cbeab41f6921d2442fa384fb8/FLAGcc1888d69 [2018-11-28 23:14:37,702 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46984631b/a24a350cbeab41f6921d2442fa384fb8 [2018-11-28 23:14:37,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:14:37,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:14:37,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:37,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:14:37,713 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:14:37,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:37" (1/1) ... [2018-11-28 23:14:37,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f67e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:37, skipping insertion in model container [2018-11-28 23:14:37,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:37" (1/1) ... [2018-11-28 23:14:37,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:14:37,750 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:14:38,002 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:38,012 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:14:38,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:38,052 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:14:38,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38 WrapperNode [2018-11-28 23:14:38,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:38,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:38,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:14:38,053 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:14:38,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:38,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:14:38,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:14:38,093 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:14:38,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (1/1) ... [2018-11-28 23:14:38,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:14:38,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:14:38,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:14:38,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:14:38,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (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 23:14:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:14:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:14:38,408 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:14:38,408 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:14:38,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:38 BoogieIcfgContainer [2018-11-28 23:14:38,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:14:38,410 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:14:38,410 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:14:38,414 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:14:38,415 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:38,415 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:14:37" (1/3) ... [2018-11-28 23:14:38,417 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@789a40d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:38, skipping insertion in model container [2018-11-28 23:14:38,417 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:38,417 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:38" (2/3) ... [2018-11-28 23:14:38,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@789a40d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:38, skipping insertion in model container [2018-11-28 23:14:38,418 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:38,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:38" (3/3) ... [2018-11-28 23:14:38,420 INFO L375 chiAutomizerObserver]: Analyzing ICFG WhileFalse_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 23:14:38,487 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:14:38,488 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:14:38,488 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:14:38,488 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:14:38,488 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:14:38,488 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:14:38,489 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:14:38,489 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:14:38,489 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:14:38,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:14:38,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:14:38,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:38,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:38,541 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:14:38,542 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:14:38,542 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:14:38,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:14:38,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:14:38,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:38,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:38,544 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:14:38,544 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:14:38,552 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res; 6#L14-2true [2018-11-28 23:14:38,553 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2018-11-28 23:14:38,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:38,560 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:14:38,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:38,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:38,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:38,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:38,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:38,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:38,660 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 23:14:38,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:38,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:38,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:38,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:38,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:38,686 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 23:14:38,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:14:38,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2018-11-28 23:14:38,695 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:14:38,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 23:14:38,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:14:38,719 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2018-11-28 23:14:38,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:14:38,726 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2018-11-28 23:14:38,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:14:38,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2018-11-28 23:14:38,730 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:14:38,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2018-11-28 23:14:38,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:14:38,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:14:38,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:14:38,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:14:38,736 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:38,736 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:38,736 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:38,736 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:14:38,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:14:38,737 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:14:38,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:14:38,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:14:38 BoogieIcfgContainer [2018-11-28 23:14:38,743 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:14:38,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:14:38,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:14:38,744 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:14:38,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:38" (3/4) ... [2018-11-28 23:14:38,749 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:14:38,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:14:38,750 INFO L168 Benchmark]: Toolchain (without parser) took 1043.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -134.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:14:38,752 INFO L168 Benchmark]: CDTParser took 0.21 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 23:14:38,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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. [2018-11-28 23:14:38,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.19 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. [2018-11-28 23:14:38,754 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 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. [2018-11-28 23:14:38,755 INFO L168 Benchmark]: RCFGBuilder took 293.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:38,756 INFO L168 Benchmark]: BuchiAutomizer took 333.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:38,757 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:14:38,763 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 344.72 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 39.19 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 22.58 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 293.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 333.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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 0.2s 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...