./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12318f34040209c37cd54fcab38029595d0807d6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:53:05,377 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:53:05,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:53:05,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:53:05,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:53:05,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:53:05,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:53:05,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:53:05,388 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:53:05,389 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:53:05,389 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:53:05,390 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:53:05,390 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:53:05,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:53:05,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:53:05,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:53:05,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:53:05,394 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:53:05,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:53:05,396 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:53:05,397 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:53:05,398 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:53:05,399 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:53:05,400 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:53:05,400 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:53:05,400 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:53:05,401 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:53:05,402 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:53:05,402 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:53:05,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:53:05,403 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:53:05,403 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:53:05,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:53:05,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:53:05,404 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:53:05,405 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:53:05,405 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 02:53:05,416 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:53:05,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:53:05,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:53:05,417 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:53:05,417 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:53:05,417 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 02:53:05,417 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 02:53:05,417 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 02:53:05,417 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 02:53:05,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:53:05,418 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 02:53:05,419 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:53:05,419 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:53:05,420 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 02:53:05,420 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:53:05,420 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 02:53:05,420 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 02:53:05,420 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 02:53:05,420 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_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12318f34040209c37cd54fcab38029595d0807d6 [2018-11-23 02:53:05,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:53:05,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:53:05,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:53:05,454 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:53:05,454 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:53:05,454 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:53:05,490 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/data/9d9d0355d/53416e20d19e407d8b1fdbb3ce8f17ae/FLAG3712e03e9 [2018-11-23 02:53:05,939 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:53:05,940 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:53:05,946 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/data/9d9d0355d/53416e20d19e407d8b1fdbb3ce8f17ae/FLAG3712e03e9 [2018-11-23 02:53:05,954 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/bin-2019/uautomizer/data/9d9d0355d/53416e20d19e407d8b1fdbb3ce8f17ae [2018-11-23 02:53:05,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:53:05,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:53:05,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:53:05,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:53:05,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:53:05,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:05" (1/1) ... [2018-11-23 02:53:05,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335f4bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05, skipping insertion in model container [2018-11-23 02:53:05,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:05" (1/1) ... [2018-11-23 02:53:05,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:53:06,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:53:06,206 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:53:06,212 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:53:06,282 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:53:06,305 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:53:06,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06 WrapperNode [2018-11-23 02:53:06,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:53:06,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:53:06,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:53:06,306 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:53:06,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:53:06,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:53:06,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:53:06,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:53:06,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... [2018-11-23 02:53:06,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:53:06,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:53:06,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:53:06,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:53:06,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02677d5c-ca35-48fc-8235-d4d284d1ba5c/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 [2018-11-23 02:53:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:53:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:53:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:53:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:53:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:53:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:53:06,524 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:53:06,524 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 02:53:06,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06 BoogieIcfgContainer [2018-11-23 02:53:06,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:53:06,525 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 02:53:06,525 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 02:53:06,528 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 02:53:06,529 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:53:06,529 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:53:05" (1/3) ... [2018-11-23 02:53:06,530 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59fe59f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:53:06, skipping insertion in model container [2018-11-23 02:53:06,530 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:53:06,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:06" (2/3) ... [2018-11-23 02:53:06,530 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59fe59f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:53:06, skipping insertion in model container [2018-11-23 02:53:06,530 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:53:06,530 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06" (3/3) ... [2018-11-23 02:53:06,532 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:53:06,567 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:53:06,567 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 02:53:06,567 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 02:53:06,567 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 02:53:06,567 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:53:06,567 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:53:06,567 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 02:53:06,568 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:53:06,568 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 02:53:06,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 02:53:06,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 02:53:06,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:53:06,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:53:06,594 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 02:53:06,595 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 02:53:06,595 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 02:53:06,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-23 02:53:06,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 02:53:06,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:53:06,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:53:06,596 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 02:53:06,596 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 02:53:06,601 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 6#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 10#L551true assume !(main_~length1~0 < 1); 14#L551-2true assume !(main_~n~0 < 1); 7#L554-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 15#L544-6true [2018-11-23 02:53:06,602 INFO L796 eck$LassoCheckResult]: Loop: 15#L544-6true cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 5#L544-1true assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 9#L544-3true assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~short5;havoc cstrnlen_#t~mem4; 12#L544-5true cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 15#L544-6true [2018-11-23 02:53:06,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2018-11-23 02:53:06,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:06,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:06,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:06,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:06,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1511654, now seen corresponding path program 1 times [2018-11-23 02:53:06,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:06,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:06,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:06,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:06,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1298318251, now seen corresponding path program 1 times [2018-11-23 02:53:06,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:06,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:06,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:06,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:06,874 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2018-11-23 02:53:07,059 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 02:53:07,059 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 02:53:07,060 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 02:53:07,060 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 02:53:07,060 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 02:53:07,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 02:53:07,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 02:53:07,060 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 02:53:07,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-23 02:53:07,061 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 02:53:07,061 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 02:53:07,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:53:07,494 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 02:53:07,497 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 02:53:07,498 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 [2018-11-23 02:53:07,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,500 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,502 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,502 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,504 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,504 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 [2018-11-23 02:53:07,505 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,505 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,505 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,505 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,505 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,506 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,506 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,506 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,507 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 [2018-11-23 02:53:07,507 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,507 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,508 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,508 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,508 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,508 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,508 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,510 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,510 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 [2018-11-23 02:53:07,510 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,511 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,511 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,511 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,511 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,511 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,511 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,512 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,512 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 [2018-11-23 02:53:07,512 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,512 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,513 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,513 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,514 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:53:07,514 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:53:07,516 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,517 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 [2018-11-23 02:53:07,517 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,517 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,518 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,518 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,518 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,518 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,519 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,519 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 [2018-11-23 02:53:07,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,520 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,520 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,520 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,520 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,521 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,521 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,521 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,522 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 [2018-11-23 02:53:07,522 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,522 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,522 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,522 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,523 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:53:07,523 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:53:07,525 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,526 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 [2018-11-23 02:53:07,526 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,526 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,527 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,527 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,527 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,527 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,527 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,528 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,528 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 [2018-11-23 02:53:07,529 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,529 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,529 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,529 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,529 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,530 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,530 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,530 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,530 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 [2018-11-23 02:53:07,531 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,531 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,531 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,531 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,534 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:53:07,534 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:53:07,554 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,555 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 [2018-11-23 02:53:07,555 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,555 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:53:07,556 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,556 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,556 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,556 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:53:07,556 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:53:07,557 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:53:07,558 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 [2018-11-23 02:53:07,558 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:53:07,558 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:53:07,558 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:53:07,559 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:53:07,562 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:53:07,562 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:53:07,590 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 02:53:07,609 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 02:53:07,609 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 02:53:07,611 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 02:53:07,612 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 02:53:07,612 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 02:53:07,613 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrnlen_~cp~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_cstrnlen_~cp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2018-11-23 02:53:07,629 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-23 02:53:07,636 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 02:53:07,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:07,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:07,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:53:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:53:07,718 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 02:53:07,719 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2018-11-23 02:53:07,769 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 36 states and 45 transitions. Complement of second has 8 states. [2018-11-23 02:53:07,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 02:53:07,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 02:53:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2018-11-23 02:53:07,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 02:53:07,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:53:07,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-23 02:53:07,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:53:07,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-23 02:53:07,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:53:07,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2018-11-23 02:53:07,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 02:53:07,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 18 states and 23 transitions. [2018-11-23 02:53:07,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-23 02:53:07,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-23 02:53:07,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-23 02:53:07,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 02:53:07,779 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-23 02:53:07,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-23 02:53:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-23 02:53:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 02:53:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-23 02:53:07,797 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-23 02:53:07,797 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-23 02:53:07,797 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 02:53:07,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2018-11-23 02:53:07,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 02:53:07,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:53:07,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:53:07,798 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 02:53:07,798 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 02:53:07,798 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 126#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 127#L551 assume !(main_~length1~0 < 1); 135#L551-2 assume !(main_~n~0 < 1); 128#L554-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 129#L544-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 138#L544-1 [2018-11-23 02:53:07,798 INFO L796 eck$LassoCheckResult]: Loop: 138#L544-1 assume !cstrnlen_#t~short5; 131#L544-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~short5;havoc cstrnlen_#t~mem4; 132#L544-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 136#L544-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 138#L544-1 [2018-11-23 02:53:07,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash 889572237, now seen corresponding path program 1 times [2018-11-23 02:53:07,798 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:07,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:07,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:07,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:07,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:53:07,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:53:07,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1668346, now seen corresponding path program 1 times [2018-11-23 02:53:07,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:53:07,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:53:07,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:07,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:53:07,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:53:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:53:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:53:07,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:53:07,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 02:53:07,833 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-23 02:53:07,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:53:07,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:53:07,835 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-23 02:53:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:53:07,843 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-11-23 02:53:07,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:53:07,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2018-11-23 02:53:07,844 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 02:53:07,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-11-23 02:53:07,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 02:53:07,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 02:53:07,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 02:53:07,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 02:53:07,845 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:53:07,845 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:53:07,845 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:53:07,845 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 02:53:07,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:53:07,845 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 02:53:07,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 02:53:07,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:53:07 BoogieIcfgContainer [2018-11-23 02:53:07,850 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 02:53:07,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:53:07,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:53:07,850 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:53:07,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06" (3/4) ... [2018-11-23 02:53:07,853 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 02:53:07,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:53:07,854 INFO L168 Benchmark]: Toolchain (without parser) took 1896.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.5 MB in the beginning and 894.9 MB in the end (delta: 60.6 MB). Peak memory consumption was 201.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:07,854 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:53:07,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:07,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.33 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:07,856 INFO L168 Benchmark]: Boogie Preprocessor took 14.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:53:07,856 INFO L168 Benchmark]: RCFGBuilder took 174.16 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. [2018-11-23 02:53:07,857 INFO L168 Benchmark]: BuchiAutomizer took 1324.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.6 MB in the end (delta: 211.6 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:07,857 INFO L168 Benchmark]: Witness Printer took 3.19 ms. Allocated memory is still 1.2 GB. Free memory was 897.6 MB in the beginning and 894.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:53:07,860 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 347.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.33 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.73 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 174.16 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 1324.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.6 MB in the end (delta: 211.6 MB). Peak memory consumption was 211.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.19 ms. Allocated memory is still 1.2 GB. Free memory was 897.6 MB in the beginning and 894.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * cp + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 18 SDslu, 15 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax100 hnf99 lsp80 ukn91 mio100 lsp48 div129 bol100 ite100 ukn100 eq155 hnf83 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...