./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/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 64bit --witnessprinter.graph.data.programhash 9e321f94e243f740485324fea88a9a86c3c635cf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:49:19,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:49:19,148 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:49:19,157 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:49:19,157 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:49:19,158 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:49:19,159 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:49:19,160 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:49:19,161 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:49:19,162 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:49:19,163 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:49:19,163 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:49:19,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:49:19,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:49:19,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:49:19,166 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:49:19,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:49:19,168 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:49:19,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:49:19,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:49:19,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:49:19,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:49:19,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:49:19,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:49:19,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:49:19,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:49:19,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:49:19,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:49:19,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:49:19,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:49:19,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:49:19,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:49:19,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:49:19,181 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:49:19,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:49:19,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:49:19,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 13:49:19,194 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:49:19,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:49:19,195 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:49:19,195 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:49:19,196 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:49:19,196 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 13:49:19,196 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 13:49:19,196 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 13:49:19,197 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 13:49:19,197 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 13:49:19,197 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 13:49:19,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:49:19,197 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 13:49:19,198 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:49:19,199 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 13:49:19,199 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:49:19,199 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 13:49:19,199 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:49:19,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:49:19,201 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 13:49:19,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:49:19,202 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:49:19,202 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 13:49:19,202 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 13:49:19,203 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_55a5d5df-cdbe-4ebd-94b3-4463bc604930/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e321f94e243f740485324fea88a9a86c3c635cf [2018-11-18 13:49:19,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:49:19,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:49:19,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:49:19,242 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:49:19,242 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:49:19,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i [2018-11-18 13:49:19,309 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/data/d33770bdc/ae8b76dd459d4bdb87513992e3858f68/FLAGe5c628b1e [2018-11-18 13:49:19,827 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:49:19,828 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i [2018-11-18 13:49:19,838 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/data/d33770bdc/ae8b76dd459d4bdb87513992e3858f68/FLAGe5c628b1e [2018-11-18 13:49:20,112 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/bin-2019/uautomizer/data/d33770bdc/ae8b76dd459d4bdb87513992e3858f68 [2018-11-18 13:49:20,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:49:20,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:49:20,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:49:20,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:49:20,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:49:20,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a100b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20, skipping insertion in model container [2018-11-18 13:49:20,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:49:20,179 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:49:20,514 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:49:20,523 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:49:20,571 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:49:20,696 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:49:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20 WrapperNode [2018-11-18 13:49:20,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:49:20,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:49:20,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:49:20,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:49:20,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:49:20,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:49:20,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:49:20,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:49:20,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... [2018-11-18 13:49:20,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:49:20,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:49:20,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:49:20,775 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:49:20,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_55a5d5df-cdbe-4ebd-94b3-4463bc604930/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 [2018-11-18 13:49:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:49:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:49:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:49:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:49:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:49:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:49:21,015 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:49:21,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:21 BoogieIcfgContainer [2018-11-18 13:49:21,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:49:21,016 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 13:49:21,016 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 13:49:21,018 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 13:49:21,019 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:49:21,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 01:49:20" (1/3) ... [2018-11-18 13:49:21,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@200374ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:49:21, skipping insertion in model container [2018-11-18 13:49:21,020 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:49:21,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:49:20" (2/3) ... [2018-11-18 13:49:21,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@200374ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:49:21, skipping insertion in model container [2018-11-18 13:49:21,020 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:49:21,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:21" (3/3) ... [2018-11-18 13:49:21,022 INFO L375 chiAutomizerObserver]: Analyzing ICFG strlen_true-termination.c.i [2018-11-18 13:49:21,061 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:49:21,062 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 13:49:21,062 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 13:49:21,062 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 13:49:21,062 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:49:21,062 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:49:21,062 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 13:49:21,062 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:49:21,063 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 13:49:21,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-18 13:49:21,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:49:21,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:49:21,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:49:21,097 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 13:49:21,098 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:49:21,098 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 13:49:21,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-18 13:49:21,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:49:21,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:49:21,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:49:21,099 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 13:49:21,099 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:49:21,104 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~ret7, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 8#L514true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);assume { :begin_inline_strlen } true;strlen_#in~s.base, strlen_#in~s.offset := main_~hay~0.base, main_~hay~0.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 9#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4#L509-4true [2018-11-18 13:49:21,105 INFO L796 eck$LassoCheckResult]: Loop: 4#L509-4true assume true;call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 11#L509-1true assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 14#L509-3true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4#L509-4true [2018-11-18 13:49:21,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:21,109 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-11-18 13:49:21,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:49:21,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:49:21,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:21,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:21,199 INFO L82 PathProgramCache]: Analyzing trace with hash 45841, now seen corresponding path program 1 times [2018-11-18 13:49:21,199 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:49:21,199 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:49:21,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:21,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:21,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906826, now seen corresponding path program 1 times [2018-11-18 13:49:21,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:49:21,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:49:21,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:49:21,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:49:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:49:21,530 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-11-18 13:49:21,594 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:49:21,595 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:49:21,595 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:49:21,595 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:49:21,596 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:49:21,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:49:21,596 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:49:21,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:49:21,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: strlen_true-termination.c.i_Iteration1_Lasso [2018-11-18 13:49:21,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:49:21,597 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:49:21,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:21,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:21,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:21,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:21,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,003 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-11-18 13:49:22,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:49:22,345 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:49:22,348 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:49:22,350 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 [2018-11-18 13:49:22,351 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,351 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:49:22,352 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,352 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,352 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,354 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:49:22,354 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:49:22,356 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,356 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 [2018-11-18 13:49:22,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,357 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:49:22,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,358 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:49:22,358 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:49:22,358 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,359 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 [2018-11-18 13:49:22,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,361 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:49:22,361 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,364 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,364 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 [2018-11-18 13:49:22,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,365 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:49:22,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,366 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:49:22,366 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:49:22,367 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,368 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 [2018-11-18 13:49:22,368 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,368 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,371 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:49:22,371 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,387 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,388 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 [2018-11-18 13:49:22,388 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,389 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:49:22,389 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,389 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 13:49:22,389 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,390 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 13:49:22,390 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:49:22,393 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,394 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 [2018-11-18 13:49:22,394 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,394 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-18 13:49:22,395 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,395 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,398 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-18 13:49:22,398 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,420 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,421 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 [2018-11-18 13:49:22,421 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,421 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,422 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,422 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,424 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:49:22,424 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,427 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,432 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 [2018-11-18 13:49:22,432 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,433 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,433 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,433 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,434 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:49:22,434 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,442 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:49:22,442 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 [2018-11-18 13:49:22,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:49:22,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:49:22,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:49:22,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:49:22,446 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:49:22,446 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:49:22,497 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:49:22,527 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-18 13:49:22,532 INFO L444 ModelExtractionUtils]: 20 out of 25 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-18 13:49:22,537 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:49:22,539 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-18 13:49:22,539 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:49:22,539 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_strlen_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [] [2018-11-18 13:49:22,572 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-18 13:49:22,580 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 13:49:22,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:49:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:22,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:49:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:49:22,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:49:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:49:22,667 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 [2018-11-18 13:49:22,668 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2018-11-18 13:49:22,723 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 26 states and 29 transitions. Complement of second has 7 states. [2018-11-18 13:49:22,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:49:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:49:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-18 13:49:22,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-18 13:49:22,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:49:22,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 13:49:22,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:49:22,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-18 13:49:22,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:49:22,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2018-11-18 13:49:22,731 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:49:22,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2018-11-18 13:49:22,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 13:49:22,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 13:49:22,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 13:49:22,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:49:22,735 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:49:22,735 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:49:22,735 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:49:22,735 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 13:49:22,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:49:22,736 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:49:22,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 13:49:22,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 01:49:22 BoogieIcfgContainer [2018-11-18 13:49:22,741 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 13:49:22,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:49:22,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:49:22,741 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:49:22,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:49:21" (3/4) ... [2018-11-18 13:49:22,745 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:49:22,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:49:22,745 INFO L168 Benchmark]: Toolchain (without parser) took 2630.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 957.1 MB in the beginning and 960.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 160.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,746 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:49:22,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.17 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,748 INFO L168 Benchmark]: Boogie Preprocessor took 35.98 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,748 INFO L168 Benchmark]: RCFGBuilder took 241.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,748 INFO L168 Benchmark]: BuchiAutomizer took 1724.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.1 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:49:22,749 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 1.2 GB. Free memory is still 960.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:49:22,752 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.17 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.98 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 241.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1724.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 960.1 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.72 ms. Allocated memory is still 1.2 GB. Free memory is still 960.1 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 (in_len)] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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: 9 SDtfs, 16 SDslu, 7 SDs, 0 SdLazy, 11 SolverSat, 5 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 hnf100 lsp87 ukn91 mio100 lsp48 div100 bol100 ite100 ukn100 eq186 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 4 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...