./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-libowfat/strcasecmp_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/strcasecmp_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 1c2f9d054b4fbf31aaebd626db3028f09e8a957b ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:24:13,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:24:13,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:24:13,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:24:13,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:24:13,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:24:13,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:24:13,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:24:13,901 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:24:13,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:24:13,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:24:13,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:24:13,910 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:24:13,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:24:13,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:24:13,918 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:24:13,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:24:13,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:24:13,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:24:13,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:24:13,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:24:13,937 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:24:13,941 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:24:13,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:24:13,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:24:13,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:24:13,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:24:13,945 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:24:13,945 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:24:13,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:24:13,947 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:24:13,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:24:13,948 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:24:13,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:24:13,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:24:13,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:24:13,954 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:24:13,983 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:24:13,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:24:13,985 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:24:13,988 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:24:13,989 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:24:13,989 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:24:13,989 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:24:13,989 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:24:13,989 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:24:13,990 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:24:13,991 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:24:13,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:24:13,991 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:24:13,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:24:13,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:24:13,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:24:13,993 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:24:13,993 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:24:13,993 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:24:13,993 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:24:13,993 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:24:13,994 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:24:13,994 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:24:13,994 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:24:13,994 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:24:13,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:24:13,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:24:13,995 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:24:13,999 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:24:13,999 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 -> 1c2f9d054b4fbf31aaebd626db3028f09e8a957b [2019-01-14 02:24:14,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:24:14,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:24:14,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:24:14,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:24:14,095 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:24:14,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-libowfat/strcasecmp_true-termination.c.i [2019-01-14 02:24:14,145 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d5a1af7/3771a9f1309444f3854502276fa53cfd/FLAG57fa5dd1c [2019-01-14 02:24:14,609 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:24:14,610 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-libowfat/strcasecmp_true-termination.c.i [2019-01-14 02:24:14,625 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d5a1af7/3771a9f1309444f3854502276fa53cfd/FLAG57fa5dd1c [2019-01-14 02:24:14,934 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d5a1af7/3771a9f1309444f3854502276fa53cfd [2019-01-14 02:24:14,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:24:14,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:24:14,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:24:14,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:24:14,944 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:24:14,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:24:14" (1/1) ... [2019-01-14 02:24:14,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc44fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:14, skipping insertion in model container [2019-01-14 02:24:14,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:24:14" (1/1) ... [2019-01-14 02:24:14,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:24:15,007 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:24:15,437 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:24:15,458 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:24:15,631 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:24:15,682 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:24:15,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15 WrapperNode [2019-01-14 02:24:15,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:24:15,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:24:15,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:24:15,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:24:15,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:24:15,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:24:15,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:24:15,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:24:15,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (1/1) ... [2019-01-14 02:24:15,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:24:15,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:24:15,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:24:15,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:24:15,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (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 02:24:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 02:24:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 02:24:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 02:24:15,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 02:24:15,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:24:15,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:24:16,464 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:24:16,464 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 02:24:16,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:16 BoogieIcfgContainer [2019-01-14 02:24:16,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:24:16,467 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:24:16,467 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:24:16,471 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:24:16,472 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:16,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:24:14" (1/3) ... [2019-01-14 02:24:16,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52173500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:24:16, skipping insertion in model container [2019-01-14 02:24:16,474 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:16,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:24:15" (2/3) ... [2019-01-14 02:24:16,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52173500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:24:16, skipping insertion in model container [2019-01-14 02:24:16,474 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:24:16,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:16" (3/3) ... [2019-01-14 02:24:16,478 INFO L375 chiAutomizerObserver]: Analyzing ICFG strcasecmp_true-termination.c.i [2019-01-14 02:24:16,533 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:24:16,534 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:24:16,534 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:24:16,534 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:24:16,535 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:24:16,535 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:24:16,535 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:24:16,536 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:24:16,536 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:24:16,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-01-14 02:24:16,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-01-14 02:24:16,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:24:16,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:24:16,582 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-14 02:24:16,582 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 02:24:16,582 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:24:16,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-01-14 02:24:16,585 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-01-14 02:24:16,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:24:16,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:24:16,585 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-14 02:24:16,586 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 02:24:16,594 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L523true assume !(main_~in_len~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet8;havoc main_#t~nondet8; 18#L527true assume !(main_~out_len~0 < 1);call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1), 1);strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset, strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcasecmp_#res;havoc strcasecmp_#t~mem2, strcasecmp_#t~mem3, strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset, strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset, strcasecmp_~s1.base, strcasecmp_~s1.offset, strcasecmp_~s2.base, strcasecmp_~s2.offset, strcasecmp_~x2~0, strcasecmp_~x1~0;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset;havoc strcasecmp_~x2~0;havoc strcasecmp_~x1~0; 14#L510-2true [2019-01-14 02:24:16,595 INFO L796 eck$LassoCheckResult]: Loop: 14#L510-2true assume !false;call strcasecmp_#t~mem2 := read~int(strcasecmp_~s2.base, strcasecmp_~s2.offset, 1);strcasecmp_~x2~0 := strcasecmp_#t~mem2 - 65;havoc strcasecmp_#t~mem2; 7#L511true assume strcasecmp_~x2~0 % 4294967296 < 26;strcasecmp_~x2~0 := 32 + strcasecmp_~x2~0; 11#L511-2true call strcasecmp_#t~mem3 := read~int(strcasecmp_~s1.base, strcasecmp_~s1.offset, 1);strcasecmp_~x1~0 := strcasecmp_#t~mem3 - 65;havoc strcasecmp_#t~mem3; 6#L512true assume !(strcasecmp_~x1~0 % 4294967296 < 26); 9#L512-2true strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset := strcasecmp_~s1.base, strcasecmp_~s1.offset;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#t~post4.base, 1 + strcasecmp_#t~post4.offset;havoc strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset;strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset := strcasecmp_~s2.base, strcasecmp_~s2.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#t~post5.base, 1 + strcasecmp_#t~post5.offset;havoc strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset; 4#L514true assume !(strcasecmp_~x2~0 % 4294967296 != strcasecmp_~x1~0 % 4294967296); 3#L516true assume !(4294967231 == strcasecmp_~x1~0 % 4294967296); 14#L510-2true [2019-01-14 02:24:16,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:16,602 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-01-14 02:24:16,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:16,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:16,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:16,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash -380472609, now seen corresponding path program 1 times [2019-01-14 02:24:16,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:16,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:16,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:16,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1579348248, now seen corresponding path program 1 times [2019-01-14 02:24:16,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:24:16,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:24:16,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:24:16,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:24:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:24:17,350 WARN L181 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-01-14 02:24:17,489 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-01-14 02:24:18,418 WARN L181 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-01-14 02:24:18,546 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-01-14 02:24:18,576 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:24:18,578 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:24:18,578 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:24:18,578 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:24:18,579 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:24:18,579 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:24:18,579 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:24:18,579 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:24:18,579 INFO L131 ssoRankerPreferences]: Filename of dumped script: strcasecmp_true-termination.c.i_Iteration1_Lasso [2019-01-14 02:24:18,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:24:18,580 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:24:18,616 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 02:24:19,187 WARN L181 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-01-14 02:24:19,466 WARN L181 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-01-14 02:24:19,467 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 02:24:19,469 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 02:24:19,495 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 02:24:19,497 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 02:24:19,499 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 02:24:19,502 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 02:24:19,505 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 02:24:19,507 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 02:24:19,511 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 02:24:19,516 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 02:24:19,517 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 02:24:19,520 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 02:24:19,522 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 02:24:19,665 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-01-14 02:24:19,865 WARN L181 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-01-14 02:24:20,514 WARN L181 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-01-14 02:24:20,850 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-01-14 02:24:20,901 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:24:20,907 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:24:20,910 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 02:24:20,913 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:20,913 INFO L205 nArgumentSynthesizer]: 4 stem disjuncts [2019-01-14 02:24:20,913 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:20,914 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:20,933 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-01-14 02:24:20,934 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,053 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,053 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 02:24:21,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,054 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:24:21,055 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,055 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,062 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:24:21,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:24:21,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,082 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 02:24:21,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,083 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,083 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,083 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,086 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,087 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,096 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 02:24:21,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,098 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,098 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,098 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,101 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,101 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,128 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 02:24:21,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,130 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,130 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,130 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,131 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,131 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,136 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,140 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 02:24:21,141 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,142 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,142 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,145 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,146 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,164 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 02:24:21,170 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,172 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,172 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,180 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:24:21,181 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 02:24:21,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:24:21,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:24:21,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:24:21,182 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:24:21,191 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:24:21,192 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:24:21,273 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:24:21,355 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-01-14 02:24:21,356 INFO L444 ModelExtractionUtils]: 43 out of 49 variables were initially zero. Simplification set additionally 3 variables to zero. [2019-01-14 02:24:21,359 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:24:21,361 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-14 02:24:21,367 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:24:21,368 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s1.offset, v_rep(select #length ULTIMATE.start_main_~out~0.base)_1) = -1*ULTIMATE.start_strcasecmp_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_~out~0.base)_1 Supporting invariants [] [2019-01-14 02:24:21,742 INFO L297 tatePredicateManager]: 16 out of 18 supporting invariants were superfluous and have been removed [2019-01-14 02:24:21,768 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-14 02:24:21,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:24:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:24:21,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:24:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:24:22,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:24:22,054 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 02:24:22,070 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-01-14 02:24:22,071 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2019-01-14 02:24:22,171 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 41 states and 52 transitions. Complement of second has 8 states. [2019-01-14 02:24:22,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-14 02:24:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-14 02:24:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2019-01-14 02:24:22,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 4 letters. Loop has 7 letters. [2019-01-14 02:24:22,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:22,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 11 letters. Loop has 7 letters. [2019-01-14 02:24:22,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:22,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 4 letters. Loop has 14 letters. [2019-01-14 02:24:22,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:24:22,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2019-01-14 02:24:22,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:24:22,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2019-01-14 02:24:22,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:24:22,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:24:22,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:24:22,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:24:22,196 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:22,196 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:22,196 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:24:22,196 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:24:22,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:24:22,197 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:24:22,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:24:22,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:24:22 BoogieIcfgContainer [2019-01-14 02:24:22,206 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:24:22,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:24:22,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:24:22,207 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:24:22,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:24:16" (3/4) ... [2019-01-14 02:24:22,212 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:24:22,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:24:22,213 INFO L168 Benchmark]: Toolchain (without parser) took 7274.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -95.6 MB). Peak memory consumption was 113.6 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:22,215 INFO L168 Benchmark]: CDTParser took 0.12 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 02:24:22,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:22,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.27 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 02:24:22,217 INFO L168 Benchmark]: Boogie Preprocessor took 41.03 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 02:24:22,219 INFO L168 Benchmark]: RCFGBuilder took 677.87 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:22,220 INFO L168 Benchmark]: BuchiAutomizer took 5739.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.6 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. [2019-01-14 02:24:22,220 INFO L168 Benchmark]: Witness Printer took 6.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:24:22,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 742.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.27 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. * Boogie Preprocessor took 41.03 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 677.87 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5739.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.6 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 -1 * s1 + unknown-#length-unknown[out] and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 21 SDtfs, 27 SDslu, 24 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital234 mio100 ax100 hnf100 lsp97 ukn89 mio100 lsp44 div161 bol100 ite100 ukn100 eq146 hnf72 smp100 dnf156 smp97 tf100 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 143ms VariablesStem: 9 VariablesLoop: 8 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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...