./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 693983fd65e20b5d89b8cfa65a19d47075cafd63 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-02 00:20:19,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-02 00:20:19,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-02 00:20:19,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-02 00:20:19,925 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-02 00:20:19,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-02 00:20:19,928 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-02 00:20:19,930 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-02 00:20:19,932 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-02 00:20:19,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-02 00:20:19,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-02 00:20:19,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-02 00:20:19,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-02 00:20:19,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-02 00:20:19,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-02 00:20:19,938 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-02 00:20:19,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-02 00:20:19,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-02 00:20:19,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-02 00:20:19,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-02 00:20:19,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-02 00:20:19,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-02 00:20:19,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-02 00:20:19,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-02 00:20:19,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-02 00:20:19,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-02 00:20:19,953 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-02 00:20:19,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-02 00:20:19,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-02 00:20:19,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-02 00:20:19,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-02 00:20:19,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-02 00:20:19,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-02 00:20:19,958 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-02 00:20:19,959 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-02 00:20:19,960 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-02 00:20:19,960 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-02 00:20:19,985 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-02 00:20:19,985 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-02 00:20:19,986 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-02 00:20:19,987 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-02 00:20:19,987 INFO L133 SettingsManager]: * Use SBE=true [2019-01-02 00:20:19,987 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-02 00:20:19,988 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-02 00:20:19,988 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-02 00:20:19,988 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-02 00:20:19,988 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-02 00:20:19,988 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-02 00:20:19,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-02 00:20:19,989 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-02 00:20:19,989 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-02 00:20:19,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-02 00:20:19,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-02 00:20:19,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-02 00:20:19,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-02 00:20:19,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-02 00:20:19,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-02 00:20:19,992 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-02 00:20:19,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-02 00:20:19,992 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-02 00:20:19,992 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-02 00:20:19,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-02 00:20:19,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-02 00:20:19,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-02 00:20:19,994 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-02 00:20:19,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-02 00:20:19,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-02 00:20:19,994 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-02 00:20:19,996 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-02 00:20:19,996 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 693983fd65e20b5d89b8cfa65a19d47075cafd63 [2019-01-02 00:20:20,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-02 00:20:20,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-02 00:20:20,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-02 00:20:20,053 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-02 00:20:20,054 INFO L276 PluginConnector]: CDTParser initialized [2019-01-02 00:20:20,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2019-01-02 00:20:20,119 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a1179a/2eee74228f1e4d358ee912c7278756ce/FLAG28115d262 [2019-01-02 00:20:20,700 INFO L307 CDTParser]: Found 1 translation units. [2019-01-02 00:20:20,703 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2019-01-02 00:20:20,723 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a1179a/2eee74228f1e4d358ee912c7278756ce/FLAG28115d262 [2019-01-02 00:20:20,970 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a1179a/2eee74228f1e4d358ee912c7278756ce [2019-01-02 00:20:20,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-02 00:20:20,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-02 00:20:20,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-02 00:20:20,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-02 00:20:20,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-02 00:20:20,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.01 12:20:20" (1/1) ... [2019-01-02 00:20:20,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d01386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:20, skipping insertion in model container [2019-01-02 00:20:20,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.01 12:20:20" (1/1) ... [2019-01-02 00:20:20,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-02 00:20:21,037 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-02 00:20:21,392 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-02 00:20:21,404 INFO L191 MainTranslator]: Completed pre-run [2019-01-02 00:20:21,448 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-02 00:20:21,517 INFO L195 MainTranslator]: Completed translation [2019-01-02 00:20:21,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21 WrapperNode [2019-01-02 00:20:21,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-02 00:20:21,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-02 00:20:21,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-02 00:20:21,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-02 00:20:21,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-02 00:20:21,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-02 00:20:21,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-02 00:20:21,669 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-02 00:20:21,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (1/1) ... [2019-01-02 00:20:21,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-02 00:20:21,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-02 00:20:21,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-02 00:20:21,705 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-02 00:20:21,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (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 [2019-01-02 00:20:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-02 00:20:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-02 00:20:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-02 00:20:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-02 00:20:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-02 00:20:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-02 00:20:22,125 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-02 00:20:22,125 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-02 00:20:22,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.01 12:20:22 BoogieIcfgContainer [2019-01-02 00:20:22,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-02 00:20:22,126 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-02 00:20:22,127 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-02 00:20:22,130 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-02 00:20:22,131 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-02 00:20:22,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.01 12:20:20" (1/3) ... [2019-01-02 00:20:22,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669ec1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.01 12:20:22, skipping insertion in model container [2019-01-02 00:20:22,133 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-02 00:20:22,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.01 12:20:21" (2/3) ... [2019-01-02 00:20:22,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669ec1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.01 12:20:22, skipping insertion in model container [2019-01-02 00:20:22,134 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-02 00:20:22,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.01 12:20:22" (3/3) ... [2019-01-02 00:20:22,136 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2019-01-02 00:20:22,196 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-02 00:20:22,197 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-02 00:20:22,197 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-02 00:20:22,197 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-02 00:20:22,197 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-02 00:20:22,197 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-02 00:20:22,198 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-02 00:20:22,198 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-02 00:20:22,198 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-02 00:20:22,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-02 00:20:22,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-02 00:20:22,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-02 00:20:22,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-02 00:20:22,241 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-02 00:20:22,241 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-02 00:20:22,241 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-02 00:20:22,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-02 00:20:22,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-02 00:20:22,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-02 00:20:22,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-02 00:20:22,243 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-02 00:20:22,243 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-02 00:20:22,252 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L550true assume !(main_~length1~0 < 1); 4#L550-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~str.base, cstrlen_#in~str.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset, cstrlen_#t~mem3, cstrlen_~str.base, cstrlen_~str.offset, cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~str.base, cstrlen_~str.offset := cstrlen_#in~str.base, cstrlen_#in~str.offset;havoc cstrlen_~s~0.base, cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~str.base, cstrlen_~str.offset; 8#L544-4true [2019-01-02 00:20:22,253 INFO L796 eck$LassoCheckResult]: Loop: 8#L544-4true call cstrlen_#t~mem3 := read~int(cstrlen_~s~0.base, cstrlen_~s~0.offset, 1); 14#L544-1true assume !!(0 != cstrlen_#t~mem3);havoc cstrlen_#t~mem3; 6#L544-3true cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;cstrlen_~s~0.base, cstrlen_~s~0.offset := cstrlen_~s~0.base, 1 + cstrlen_~s~0.offset;havoc cstrlen_#t~pre2.base, cstrlen_#t~pre2.offset; 8#L544-4true [2019-01-02 00:20:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-02 00:20:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-01-02 00:20:22,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-02 00:20:22,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-02 00:20:22,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-02 00:20:22,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-02 00:20:22,410 INFO L82 PathProgramCache]: Analyzing trace with hash 42862, now seen corresponding path program 1 times [2019-01-02 00:20:22,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-02 00:20:22,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-02 00:20:22,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-02 00:20:22,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-02 00:20:22,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1806814474, now seen corresponding path program 1 times [2019-01-02 00:20:22,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-02 00:20:22,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-02 00:20:22,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-02 00:20:22,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-02 00:20:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-02 00:20:22,716 WARN L181 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-01-02 00:20:23,271 WARN L181 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-01-02 00:20:23,473 WARN L181 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-01-02 00:20:23,490 INFO L216 LassoAnalysis]: Preferences: [2019-01-02 00:20:23,491 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-02 00:20:23,491 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-02 00:20:23,492 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-02 00:20:23,492 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-02 00:20:23,492 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-02 00:20:23,492 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-02 00:20:23,492 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-02 00:20:23,493 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2019-01-02 00:20:23,493 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-02 00:20:23,493 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-02 00:20:23,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:23,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:23,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:23,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:23,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:23,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:24,116 WARN L181 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-01-02 00:20:24,260 WARN L181 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-01-02 00:20:24,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:24,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:24,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:24,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-02 00:20:24,600 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-01-02 00:20:24,760 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-02 00:20:24,766 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-02 00:20:24,769 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 [2019-01-02 00:20:24,770 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,771 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-02 00:20:24,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,773 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,773 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,776 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-02 00:20:24,776 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-02 00:20:24,781 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,782 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 [2019-01-02 00:20:24,782 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-02 00:20:24,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,787 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-02 00:20:24,789 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-02 00:20:24,790 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,792 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 [2019-01-02 00:20:24,793 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-02 00:20:24,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,793 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,794 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-02 00:20:24,794 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-02 00:20:24,800 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,802 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 [2019-01-02 00:20:24,803 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,808 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,808 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,808 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,812 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-02 00:20:24,815 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-02 00:20:24,823 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,829 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 [2019-01-02 00:20:24,830 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,830 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-02 00:20:24,830 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,831 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,831 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,832 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-02 00:20:24,834 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-02 00:20:24,836 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,837 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 [2019-01-02 00:20:24,837 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,838 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-02 00:20:24,838 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,838 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,846 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-02 00:20:24,846 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-02 00:20:24,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-02 00:20:24,881 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 [2019-01-02 00:20:24,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-02 00:20:24,885 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-02 00:20:24,885 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-02 00:20:24,885 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-02 00:20:24,896 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-02 00:20:24,897 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-02 00:20:24,980 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-02 00:20:25,059 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-01-02 00:20:25,060 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-01-02 00:20:25,062 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-02 00:20:25,064 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-02 00:20:25,064 INFO L518 LassoAnalysis]: Proved termination. [2019-01-02 00:20:25,065 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_1, ULTIMATE.start_cstrlen_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_1 - 1*ULTIMATE.start_cstrlen_~s~0.offset Supporting invariants [] [2019-01-02 00:20:25,092 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-01-02 00:20:25,103 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-02 00:20:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-02 00:20:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-02 00:20:25,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-02 00:20:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-02 00:20:25,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-02 00:20:25,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-02 00:20:25,271 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 [2019-01-02 00:20:25,273 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-01-02 00:20:25,357 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 22 states and 25 transitions. Complement of second has 6 states. [2019-01-02 00:20:25,357 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 [2019-01-02 00:20:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-02 00:20:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-01-02 00:20:25,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2019-01-02 00:20:25,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-02 00:20:25,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2019-01-02 00:20:25,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-02 00:20:25,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2019-01-02 00:20:25,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-02 00:20:25,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2019-01-02 00:20:25,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-02 00:20:25,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-01-02 00:20:25,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-02 00:20:25,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-02 00:20:25,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-02 00:20:25,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-02 00:20:25,373 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-02 00:20:25,373 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-02 00:20:25,373 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-02 00:20:25,373 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-02 00:20:25,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-02 00:20:25,373 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-02 00:20:25,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-02 00:20:25,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.01 12:20:25 BoogieIcfgContainer [2019-01-02 00:20:25,381 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-02 00:20:25,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-02 00:20:25,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-02 00:20:25,382 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-02 00:20:25,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.01 12:20:22" (3/4) ... [2019-01-02 00:20:25,386 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-02 00:20:25,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-02 00:20:25,387 INFO L168 Benchmark]: Toolchain (without parser) took 4412.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.4 MB in the beginning and 938.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 148.7 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,388 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-02 00:20:25,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,390 INFO L168 Benchmark]: Boogie Preprocessor took 34.92 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,391 INFO L168 Benchmark]: RCFGBuilder took 421.39 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,392 INFO L168 Benchmark]: BuchiAutomizer took 3254.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.5 MB in the end (delta: 164.5 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. [2019-01-02 00:20:25,393 INFO L168 Benchmark]: Witness Printer took 4.63 ms. Allocated memory is still 1.2 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-02 00:20:25,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 541.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 929.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 150.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.92 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 421.39 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3254.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.5 MB in the end (delta: 164.5 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.63 ms. Allocated memory is still 1.2 GB. Free memory is still 938.5 MB. 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 unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. 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: 7 SDtfs, 11 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital114 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp45 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf109 smp100 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 6 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...