./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer --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 46ac9a098c7c17e5f63698307929b277c408d664 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:48:55,845 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:48:55,846 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:48:55,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:48:55,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:48:55,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:48:55,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:48:55,857 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:48:55,858 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:48:55,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:48:55,859 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:48:55,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:48:55,860 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:48:55,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:48:55,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:48:55,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:48:55,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:48:55,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:48:55,865 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:48:55,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:48:55,867 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:48:55,868 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:48:55,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:48:55,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:48:55,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:48:55,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:48:55,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:48:55,873 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:48:55,874 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:48:55,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:48:55,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:48:55,876 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:48:55,876 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:48:55,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:48:55,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:48:55,877 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:48:55,877 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 03:48:55,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:48:55,888 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:48:55,889 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:48:55,890 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:48:55,890 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:48:55,890 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 03:48:55,890 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 03:48:55,890 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 03:48:55,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:48:55,891 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:48:55,892 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 03:48:55,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 03:48:55,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:48:55,893 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:48:55,893 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 03:48:55,893 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:48:55,893 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:48:55,893 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 03:48:55,894 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 03:48:55,895 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer 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 -> 46ac9a098c7c17e5f63698307929b277c408d664 [2018-11-10 03:48:55,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:48:55,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:48:55,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:48:55,931 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:48:55,931 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:48:55,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:48:55,967 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/data/106300a7d/61d6ed3fcb1f4f92a5248d1dda426ee1/FLAG9a76bc7e2 [2018-11-10 03:48:56,397 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:48:56,398 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/sv-benchmarks/c/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:48:56,404 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/data/106300a7d/61d6ed3fcb1f4f92a5248d1dda426ee1/FLAG9a76bc7e2 [2018-11-10 03:48:56,413 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/data/106300a7d/61d6ed3fcb1f4f92a5248d1dda426ee1 [2018-11-10 03:48:56,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:48:56,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:48:56,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:48:56,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:48:56,418 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:48:56,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543fc7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56, skipping insertion in model container [2018-11-10 03:48:56,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:48:56,455 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:48:56,628 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:48:56,634 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:48:56,661 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:48:56,685 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:48:56,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56 WrapperNode [2018-11-10 03:48:56,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:48:56,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:48:56,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:48:56,686 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:48:56,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:48:56,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:48:56,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:48:56,752 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:48:56,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... [2018-11-10 03:48:56,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:48:56,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:48:56,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:48:56,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:48:56,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da02e041-a8b4-4d4f-8940-34cdfb751451/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:48:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 03:48:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 03:48:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:48:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:48:56,979 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:48:56,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:48:56 BoogieIcfgContainer [2018-11-10 03:48:56,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:48:56,980 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 03:48:56,980 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 03:48:56,983 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 03:48:56,984 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:48:56,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 03:48:56" (1/3) ... [2018-11-10 03:48:56,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a441d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:48:56, skipping insertion in model container [2018-11-10 03:48:56,985 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:48:56,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:48:56" (2/3) ... [2018-11-10 03:48:56,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a441d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:48:56, skipping insertion in model container [2018-11-10 03:48:56,986 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:48:56,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:48:56" (3/3) ... [2018-11-10 03:48:56,988 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-11-10 03:48:57,030 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:48:57,030 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 03:48:57,030 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 03:48:57,030 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 03:48:57,031 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:48:57,031 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:48:57,031 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 03:48:57,031 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:48:57,031 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 03:48:57,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-10 03:48:57,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:48:57,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:48:57,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:48:57,067 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:48:57,067 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:48:57,067 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 03:48:57,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-10 03:48:57,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:48:57,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:48:57,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:48:57,069 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:48:57,069 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:48:57,077 INFO L793 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;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; 15#L549true assume !(main_~length1~0 < 1); 3#L549-2true #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~length1~0 * 1;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 7#L553true SUMMARY for call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1) * 1, 1); srcloc: L553 10#L553-1true assume { :begin_inline_cstrlen } true;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 13#L543-4true [2018-11-10 03:48:57,077 INFO L795 eck$LassoCheckResult]: Loop: 13#L543-4true assume true; 8#L543-1true SUMMARY for call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); srcloc: L543-1 11#L543-2true assume !!(cstrlen_#t~mem2 != 0);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, cstrlen_#t~post3.offset + 1;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 13#L543-4true [2018-11-10 03:48:57,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:48:57,082 INFO L82 PathProgramCache]: Analyzing trace with hash 889568230, now seen corresponding path program 1 times [2018-11-10 03:48:57,084 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:48:57,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:48:57,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:48:57,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:48:57,176 INFO L82 PathProgramCache]: Analyzing trace with hash 44755, now seen corresponding path program 1 times [2018-11-10 03:48:57,176 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:48:57,176 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:48:57,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:48:57,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:48:57,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1178938574, now seen corresponding path program 1 times [2018-11-10 03:48:57,187 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:48:57,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:48:57,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:48:57,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:48:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:48:57,418 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-11-10 03:48:57,486 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:48:57,486 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:48:57,487 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:48:57,487 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:48:57,487 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:48:57,487 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:48:57,487 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:48:57,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:48:57,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-10 03:48:57,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:48:57,488 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:48:57,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,655 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2018-11-10 03:48:57,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:48:57,986 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:48:57,989 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:48:57,991 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 [2018-11-10 03:48:57,992 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:57,992 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:48:57,992 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:57,992 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:57,992 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:57,994 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:48:57,994 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:48:57,995 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:57,995 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 [2018-11-10 03:48:57,996 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:57,996 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:48:57,996 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:57,996 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:57,996 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:57,996 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:48:57,996 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:48:57,997 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:57,997 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 [2018-11-10 03:48:57,998 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:57,998 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:48:57,998 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:57,998 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:57,998 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:57,999 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:48:57,999 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:48:58,000 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,001 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 [2018-11-10 03:48:58,001 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,002 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,002 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,004 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,004 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,007 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,008 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 [2018-11-10 03:48:58,008 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,008 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:48:58,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,009 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:48:58,009 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:48:58,010 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,010 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 [2018-11-10 03:48:58,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,012 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,013 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,017 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,018 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 [2018-11-10 03:48:58,018 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,019 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,021 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,021 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,037 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,038 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 [2018-11-10 03:48:58,038 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,039 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-10 03:48:58,039 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,039 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,042 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-10 03:48:58,043 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,065 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,065 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 [2018-11-10 03:48:58,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,069 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,069 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,074 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,074 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 [2018-11-10 03:48:58,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,075 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,076 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,083 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:48:58,083 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 [2018-11-10 03:48:58,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:48:58,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:48:58,084 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:48:58,084 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:48:58,087 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 03:48:58,087 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 03:48:58,121 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:48:58,141 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 03:48:58,141 INFO L444 ModelExtractionUtils]: 29 out of 34 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-10 03:48:58,143 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:48:58,144 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-10 03:48:58,144 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:48:58,145 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1, ULTIMATE.start_cstrlen_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 - 1*ULTIMATE.start_cstrlen_~p~0.offset Supporting invariants [] [2018-11-10 03:48:58,166 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-10 03:48:58,173 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 03:48:58,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-10 03:48:58,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-11-10 03:48:58,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:48:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:48:58,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:48:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:48:58,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:48:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:48:58,275 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-10 03:48:58,276 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 5 states. [2018-11-10 03:48:58,314 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 5 states. Result 27 states and 30 transitions. Complement of second has 8 states. [2018-11-10 03:48:58,314 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 [2018-11-10 03:48:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 03:48:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2018-11-10 03:48:58,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 03:48:58,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:48:58,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 03:48:58,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:48:58,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 03:48:58,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:48:58,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2018-11-10 03:48:58,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:48:58,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2018-11-10 03:48:58,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 03:48:58,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 03:48:58,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 03:48:58,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 03:48:58,324 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:48:58,324 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:48:58,324 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:48:58,324 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 03:48:58,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:48:58,324 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:48:58,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 03:48:58,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 03:48:58 BoogieIcfgContainer [2018-11-10 03:48:58,329 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 03:48:58,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:48:58,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:48:58,329 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:48:58,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:48:56" (3/4) ... [2018-11-10 03:48:58,332 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:48:58,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:48:58,332 INFO L168 Benchmark]: Toolchain (without parser) took 1917.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.5 MB in the beginning and 881.0 MB in the end (delta: 76.6 MB). Peak memory consumption was 210.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:48:58,333 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:48:58,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.91 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 936.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:48:58,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.1 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 03:48:58,334 INFO L168 Benchmark]: Boogie Preprocessor took 14.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:48:58,335 INFO L168 Benchmark]: RCFGBuilder took 212.90 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-10 03:48:58,335 INFO L168 Benchmark]: BuchiAutomizer took 1348.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.0 MB in the end (delta: 228.1 MB). Peak memory consumption was 228.1 MB. Max. memory is 11.5 GB. [2018-11-10 03:48:58,335 INFO L168 Benchmark]: Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 881.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:48:58,339 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.91 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 936.1 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 65.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.1 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.59 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 212.90 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: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1348.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.0 MB in the end (delta: 228.1 MB). Peak memory consumption was 228.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 881.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * 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[#Ultimate.alloc_#res] + -1 * p and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 10 SDtfs, 17 SDslu, 9 SDs, 0 SdLazy, 8 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax100 hnf99 lsp95 ukn110 mio100 lsp39 div100 bol100 ite100 ukn100 eq198 hnf88 smp100 dnf101 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms 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...