./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/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 313812bc7f7f65c22e6158e6e59cd01f03c6b884 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 12:55:34,246 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:55:34,247 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:55:34,253 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:55:34,253 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:55:34,254 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:55:34,255 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:55:34,255 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:55:34,256 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:55:34,257 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:55:34,257 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:55:34,257 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:55:34,258 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:55:34,258 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:55:34,259 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:55:34,259 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:55:34,259 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:55:34,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:55:34,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:55:34,262 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:55:34,262 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:55:34,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:55:34,264 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:55:34,264 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:55:34,264 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:55:34,265 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:55:34,265 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:55:34,266 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:55:34,266 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:55:34,266 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:55:34,267 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:55:34,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:55:34,267 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:55:34,267 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:55:34,268 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:55:34,268 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:55:34,268 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 12:55:34,276 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:55:34,276 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:55:34,277 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 12:55:34,277 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 12:55:34,277 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 12:55:34,278 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:55:34,278 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 12:55:34,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:55:34,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:55:34,279 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 12:55:34,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:55:34,279 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 12:55:34,279 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 12:55:34,279 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 12:55:34,280 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_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/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 -> 313812bc7f7f65c22e6158e6e59cd01f03c6b884 [2018-12-09 12:55:34,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:55:34,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:55:34,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:55:34,305 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:55:34,306 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:55:34,306 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i [2018-12-09 12:55:34,339 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/data/f3152950b/8372a531b5f54ba2b34c5c37a60c0798/FLAGe70c58cb8 [2018-12-09 12:55:34,754 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:55:34,755 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i [2018-12-09 12:55:34,761 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/data/f3152950b/8372a531b5f54ba2b34c5c37a60c0798/FLAGe70c58cb8 [2018-12-09 12:55:34,769 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/bin-2019/uautomizer/data/f3152950b/8372a531b5f54ba2b34c5c37a60c0798 [2018-12-09 12:55:34,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:55:34,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:55:34,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:55:34,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:55:34,774 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:55:34,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:55:34" (1/1) ... [2018-12-09 12:55:34,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e9f722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:34, skipping insertion in model container [2018-12-09 12:55:34,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:55:34" (1/1) ... [2018-12-09 12:55:34,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:55:34,797 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:55:34,938 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:55:34,944 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:55:35,011 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:55:35,034 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:55:35,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35 WrapperNode [2018-12-09 12:55:35,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:55:35,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:55:35,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:55:35,035 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:55:35,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:55:35,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:55:35,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:55:35,061 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:55:35,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... [2018-12-09 12:55:35,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:55:35,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:55:35,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:55:35,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:55:35,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00eff1bf-00b6-4c3a-928c-a2c99ccf6bff/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 [2018-12-09 12:55:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:55:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 12:55:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 12:55:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:55:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:55:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:55:35,229 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:55:35,230 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 12:55:35,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:55:35 BoogieIcfgContainer [2018-12-09 12:55:35,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:55:35,230 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 12:55:35,230 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 12:55:35,233 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 12:55:35,234 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 12:55:35,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 12:55:34" (1/3) ... [2018-12-09 12:55:35,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f38baba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:55:35, skipping insertion in model container [2018-12-09 12:55:35,235 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 12:55:35,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:55:35" (2/3) ... [2018-12-09 12:55:35,236 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f38baba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:55:35, skipping insertion in model container [2018-12-09 12:55:35,236 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 12:55:35,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:55:35" (3/3) ... [2018-12-09 12:55:35,237 INFO L375 chiAutomizerObserver]: Analyzing ICFG stpcpy_true-termination.c.i [2018-12-09 12:55:35,280 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:55:35,281 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 12:55:35,281 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 12:55:35,281 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 12:55:35,281 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:55:35,281 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:55:35,281 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 12:55:35,281 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:55:35,281 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 12:55:35,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-12-09 12:55:35,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 12:55:35,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 12:55:35,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 12:55:35,307 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-09 12:55:35,307 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 12:55:35,307 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 12:55:35,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-12-09 12:55:35,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 12:55:35,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 12:55:35,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 12:55:35,308 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-09 12:55:35,308 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 12:55:35,313 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2018-12-09 12:55:35,313 INFO L796 eck$LassoCheckResult]: Loop: 6#L507-3true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); 13#L507-1true assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~mem4; 6#L507-3true [2018-12-09 12:55:35,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:55:35,317 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-12-09 12:55:35,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:55:35,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:55:35,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:55:35,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:55:35,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2018-12-09 12:55:35,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:55:35,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:55:35,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:55:35,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:55:35,411 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2018-12-09 12:55:35,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:55:35,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:55:35,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:55:35,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:55:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:55:35,638 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2018-12-09 12:55:35,692 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 12:55:35,693 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 12:55:35,693 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 12:55:35,693 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 12:55:35,693 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 12:55:35,693 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 12:55:35,693 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 12:55:35,693 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 12:55:35,693 INFO L131 ssoRankerPreferences]: Filename of dumped script: stpcpy_true-termination.c.i_Iteration1_Lasso [2018-12-09 12:55:35,693 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 12:55:35,694 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 12:55:35,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:35,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 12:55:36,245 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 12:55:36,250 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 12:55:36,252 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 [2018-12-09 12:55:36,253 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,253 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,254 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,254 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,254 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,256 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,257 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,258 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 [2018-12-09 12:55:36,258 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,258 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,259 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,259 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,259 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,259 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,260 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,260 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 [2018-12-09 12:55:36,260 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,260 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,261 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,261 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,261 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,261 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,261 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,262 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 [2018-12-09 12:55:36,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,262 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,263 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,263 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,263 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,264 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 [2018-12-09 12:55:36,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,264 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,266 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 12:55:36,266 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 12:55:36,269 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,269 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 [2018-12-09 12:55:36,270 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,270 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,270 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,272 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 12:55:36,272 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 12:55:36,275 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,275 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 [2018-12-09 12:55:36,276 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,276 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,276 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,277 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,277 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,277 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,278 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 [2018-12-09 12:55:36,278 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,278 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,279 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,279 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,279 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,279 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,280 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,281 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 [2018-12-09 12:55:36,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,281 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,282 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,282 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,282 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,283 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,283 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 [2018-12-09 12:55:36,284 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,284 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 12:55:36,284 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,284 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,285 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 12:55:36,285 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 12:55:36,286 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,286 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 [2018-12-09 12:55:36,286 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,287 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-09 12:55:36,287 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,287 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,289 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-09 12:55:36,290 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 12:55:36,305 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 12:55:36,305 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 [2018-12-09 12:55:36,306 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 12:55:36,306 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 12:55:36,306 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 12:55:36,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 12:55:36,310 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 12:55:36,310 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 12:55:36,366 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 12:55:36,384 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 12:55:36,385 INFO L444 ModelExtractionUtils]: 41 out of 46 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-09 12:55:36,386 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 12:55:36,387 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-09 12:55:36,387 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 12:55:36,388 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_stpcpy_~src.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_stpcpy_~src.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2018-12-09 12:55:36,418 INFO L297 tatePredicateManager]: 11 out of 13 supporting invariants were superfluous and have been removed [2018-12-09 12:55:36,432 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 12:55:36,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:55:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:55:36,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:55:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:55:36,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:55:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:55:36,513 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 [2018-12-09 12:55:36,514 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2018-12-09 12:55:36,570 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 26 states and 27 transitions. Complement of second has 7 states. [2018-12-09 12:55:36,570 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 [2018-12-09 12:55:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 12:55:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-12-09 12:55:36,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-09 12:55:36,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 12:55:36,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 12:55:36,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 12:55:36,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-09 12:55:36,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 12:55:36,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 27 transitions. [2018-12-09 12:55:36,576 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 12:55:36,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2018-12-09 12:55:36,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 12:55:36,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 12:55:36,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 12:55:36,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 12:55:36,578 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:55:36,579 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:55:36,579 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:55:36,579 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 12:55:36,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 12:55:36,579 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 12:55:36,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 12:55:36,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 12:55:36 BoogieIcfgContainer [2018-12-09 12:55:36,583 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 12:55:36,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:55:36,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:55:36,583 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:55:36,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:55:35" (3/4) ... [2018-12-09 12:55:36,585 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 12:55:36,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:55:36,586 INFO L168 Benchmark]: Toolchain (without parser) took 1815.31 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -264.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:55:36,586 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:55:36,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:55:36,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.14 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:55:36,588 INFO L168 Benchmark]: Boogie Preprocessor took 14.86 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. [2018-12-09 12:55:36,588 INFO L168 Benchmark]: RCFGBuilder took 153.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:55:36,588 INFO L168 Benchmark]: BuchiAutomizer took 1352.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:55:36,589 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:55:36,591 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.14 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.86 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 153.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1352.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -103.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * src + unknown-#length-unknown[__builtin_alloca (out_len)] and consists of 5 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: 11 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital189 mio100 ax100 hnf98 lsp96 ukn91 mio100 lsp49 div100 bol100 ite100 ukn100 eq197 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 4 VariablesLoop: 3 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...