./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-libowfat/strchr_short_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f 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-libowfat/strchr_short_true-termination.c.i -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 fa76bf6b20245863a3a0ece612004b4f99489c23 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 02:24:30,674 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:24:30,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:24:30,690 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:24:30,690 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:24:30,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:24:30,693 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:24:30,701 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:24:30,702 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:24:30,703 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:24:30,704 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:24:30,704 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:24:30,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:24:30,706 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:24:30,707 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:24:30,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:24:30,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:24:30,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:24:30,712 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:24:30,714 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:24:30,715 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:24:30,716 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:24:30,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:24:30,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:24:30,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:24:30,720 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:24:30,721 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:24:30,721 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:24:30,722 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:24:30,723 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:24:30,724 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:24:30,724 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:24:30,724 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:24:30,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:24:30,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:24:30,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:24:30,727 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:24:30,749 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:24:30,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:24:30,751 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:24:30,751 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:24:30,751 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:24:30,752 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:24:30,752 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:24:30,752 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:24:30,752 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:24:30,752 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:24:30,752 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:24:30,753 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:24:30,753 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:24:30,753 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:24:30,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:24:30,753 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:24:30,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:24:30,755 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:24:30,755 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:24:30,755 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:24:30,756 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:24:30,756 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:24:30,756 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:24:30,756 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:24:30,756 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:24:30,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:24:30,758 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:24:30,758 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:24:30,759 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:24:30,759 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 -> fa76bf6b20245863a3a0ece612004b4f99489c23 [2019-01-14 02:24:30,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:24:30,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:24:30,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:24:30,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:24:30,815 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:24:30,816 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-libowfat/strchr_short_true-termination.c.i [2019-01-14 02:24:30,868 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199493bcb/dd59411b74d44b88a049ed627fbf7f94/FLAG81a046c26 [2019-01-14 02:24:31,396 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:24:31,397 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-libowfat/strchr_short_true-termination.c.i [2019-01-14 02:24:31,413 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199493bcb/dd59411b74d44b88a049ed627fbf7f94/FLAG81a046c26 [2019-01-14 02:24:31,700 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/199493bcb/dd59411b74d44b88a049ed627fbf7f94 [2019-01-14 02:24:31,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:24:31,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:24:31,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:24:31,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:24:31,709 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:24:31,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:24:31" (1/1) ... [2019-01-14 02:24:31,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b830e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:31, skipping insertion in model container [2019-01-14 02:24:31,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:24:31" (1/1) ... [2019-01-14 02:24:31,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:24:31,772 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:24:32,105 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:24:32,120 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:24:32,182 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:24:32,317 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:24:32,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32 WrapperNode [2019-01-14 02:24:32,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:24:32,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:24:32,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:24:32,319 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:24:32,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:24:32,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:24:32,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:24:32,368 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:24:32,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (1/1) ... [2019-01-14 02:24:32,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:24:32,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:24:32,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:24:32,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:24:32,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (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 [2019-01-14 02:24:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 02:24:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 02:24:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 02:24:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 02:24:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:24:32,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:24:32,785 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:24:32,785 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 02:24:32,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:32 BoogieIcfgContainer [2019-01-14 02:24:32,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:24:32,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:24:32,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:24:32,792 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:24:32,793 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:32,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:24:31" (1/3) ... [2019-01-14 02:24:32,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c3c534c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:24:32, skipping insertion in model container [2019-01-14 02:24:32,795 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:32,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:32" (2/3) ... [2019-01-14 02:24:32,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c3c534c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:24:32, skipping insertion in model container [2019-01-14 02:24:32,795 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:32,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:32" (3/3) ... [2019-01-14 02:24:32,798 INFO L375 chiAutomizerObserver]: Analyzing ICFG strchr_short_true-termination.c.i [2019-01-14 02:24:32,858 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:24:32,859 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:24:32,859 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:24:32,860 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:24:32,860 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:24:32,860 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:24:32,860 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:24:32,860 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:24:32,860 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:24:32,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-01-14 02:24:32,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:24:32,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:24:32,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:24:32,907 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 02:24:32,907 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 02:24:32,907 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:24:32,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-01-14 02:24:32,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:24:32,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:24:32,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:24:32,911 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 02:24:32,911 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 02:24:32,920 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 4#L516true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 10#L509-2true [2019-01-14 02:24:32,921 INFO L796 eck$LassoCheckResult]: Loop: 10#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 5#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 9#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset; 10#L509-2true [2019-01-14 02:24:32,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:32,928 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-01-14 02:24:32,930 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:32,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:32,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:32,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:32,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash 44851, now seen corresponding path program 1 times [2019-01-14 02:24:33,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:33,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:33,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:33,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:33,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:33,081 INFO L82 PathProgramCache]: Analyzing trace with hash 889574320, now seen corresponding path program 1 times [2019-01-14 02:24:33,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:33,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:33,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:33,819 WARN L181 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-01-14 02:24:34,494 WARN L181 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-01-14 02:24:34,523 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:24:34,524 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:24:34,525 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:24:34,525 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:24:34,525 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:24:34,525 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:24:34,525 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:24:34,526 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:24:34,526 INFO L131 ssoRankerPreferences]: Filename of dumped script: strchr_short_true-termination.c.i_Iteration1_Lasso [2019-01-14 02:24:34,526 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:24:34,526 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:24:34,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:34,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,133 WARN L181 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-01-14 02:24:35,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:24:35,587 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-01-14 02:24:35,741 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-01-14 02:24:36,097 WARN L181 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-01-14 02:24:36,149 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:24:36,154 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:24:36,156 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 [2019-01-14 02:24:36,158 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,158 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,159 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,159 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,159 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,161 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,161 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,164 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 [2019-01-14 02:24:36,164 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,164 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,165 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,165 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,165 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,165 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,166 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,167 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,167 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 [2019-01-14 02:24:36,168 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,168 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,168 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,168 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,169 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,169 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,169 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,170 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,170 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 [2019-01-14 02:24:36,171 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,171 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,172 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,172 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,173 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,173 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 [2019-01-14 02:24:36,174 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,174 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,174 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,174 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,174 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,175 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,175 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,176 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,176 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 [2019-01-14 02:24:36,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,180 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:36,180 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:36,185 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,185 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 [2019-01-14 02:24:36,186 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,186 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:36,186 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,187 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,187 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,187 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:36,187 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:36,189 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,189 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 [2019-01-14 02:24:36,190 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,190 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-14 02:24:36,190 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,196 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-14 02:24:36,196 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:36,237 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,237 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 [2019-01-14 02:24:36,238 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,238 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,238 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,242 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:36,242 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:36,261 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:36,261 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 [2019-01-14 02:24:36,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:36,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:36,262 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:36,262 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:36,268 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:36,268 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:36,364 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:24:36,427 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-01-14 02:24:36,429 INFO L444 ModelExtractionUtils]: 16 out of 25 variables were initially zero. Simplification set additionally 6 variables to zero. [2019-01-14 02:24:36,433 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:24:36,437 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-14 02:24:36,439 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:24:36,440 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_strchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_strchr_~t.offset Supporting invariants [] [2019-01-14 02:24:36,503 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-01-14 02:24:36,511 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-14 02:24:36,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:24:36,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:24:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:24:36,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:24:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:24:36,672 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-14 02:24:36,674 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-01-14 02:24:36,866 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 6 states. [2019-01-14 02:24:36,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 02:24:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 02:24:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-01-14 02:24:36,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2019-01-14 02:24:36,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:36,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2019-01-14 02:24:36,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:36,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2019-01-14 02:24:36,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:36,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2019-01-14 02:24:36,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:24:36,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-01-14 02:24:36,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:24:36,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:24:36,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:24:36,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:24:36,886 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:36,886 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:36,886 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:36,886 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:24:36,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:24:36,886 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:24:36,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:24:36,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:24:36 BoogieIcfgContainer [2019-01-14 02:24:36,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:24:36,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:24:36,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:24:36,892 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:24:36,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:32" (3/4) ... [2019-01-14 02:24:36,896 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:24:36,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:24:36,897 INFO L168 Benchmark]: Toolchain (without parser) took 5192.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.3 MB in the beginning and 824.3 MB in the end (delta: 127.0 MB). Peak memory consumption was 262.3 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,898 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-01-14 02:24:36,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.84 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,900 INFO L168 Benchmark]: Boogie Preprocessor took 25.74 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. [2019-01-14 02:24:36,901 INFO L168 Benchmark]: RCFGBuilder took 393.40 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,902 INFO L168 Benchmark]: BuchiAutomizer took 4103.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.0 MB in the end (delta: 264.6 MB). Peak memory consumption was 264.6 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,902 INFO L168 Benchmark]: Witness Printer took 3.86 ms. Allocated memory is still 1.2 GB. Free memory was 831.0 MB in the beginning and 824.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:36,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 612.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.84 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.74 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. * RCFGBuilder took 393.40 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4103.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 831.0 MB in the end (delta: 264.6 MB). Peak memory consumption was 264.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.86 ms. Allocated memory is still 1.2 GB. Free memory was 831.0 MB in the beginning and 824.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. 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: 8 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital230 mio100 ax100 hnf99 lsp72 ukn112 mio100 lsp34 div139 bol100 ite100 ukn100 eq158 hnf72 smp74 dnf281 smp56 tf100 neg93 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: 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...