./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrcpy-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrcpy-alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/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 97e7f2a31b1436c24cde90c969263f12d5fe3e2e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:38:57,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:38:57,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:38:57,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:38:57,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:38:57,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:38:57,371 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:38:57,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:38:57,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:38:57,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:38:57,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:38:57,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:38:57,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:38:57,376 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:38:57,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:38:57,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:38:57,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:38:57,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:38:57,380 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:38:57,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:38:57,382 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:38:57,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:38:57,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:38:57,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:38:57,384 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:38:57,384 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:38:57,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:38:57,385 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:38:57,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:38:57,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:38:57,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:38:57,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:38:57,388 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:38:57,388 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:38:57,389 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:38:57,389 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:38:57,389 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 13:38:57,399 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:38:57,399 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:38:57,400 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:38:57,400 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:38:57,400 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:38:57,400 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 13:38:57,400 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 13:38:57,401 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:38:57,401 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 13:38:57,402 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:38:57,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 13:38:57,403 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:38:57,403 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:38:57,403 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 13:38:57,403 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:38:57,403 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:38:57,403 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 13:38:57,404 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 13:38:57,404 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_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/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 -> 97e7f2a31b1436c24cde90c969263f12d5fe3e2e [2018-11-23 13:38:57,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:38:57,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:38:57,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:38:57,441 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:38:57,442 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:38:57,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrcpy-alloca_true-termination.c.i [2018-11-23 13:38:57,490 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/data/4f4513b89/4532da0b9c90436e87a6649e1411482b/FLAGc81effee1 [2018-11-23 13:38:57,861 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:38:57,862 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/sv-benchmarks/c/termination-memory-alloca/cstrcpy-alloca_true-termination.c.i [2018-11-23 13:38:57,871 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/data/4f4513b89/4532da0b9c90436e87a6649e1411482b/FLAGc81effee1 [2018-11-23 13:38:58,250 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/bin-2019/uautomizer/data/4f4513b89/4532da0b9c90436e87a6649e1411482b [2018-11-23 13:38:58,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:38:58,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:38:58,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:38:58,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:38:58,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:38:58,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383c9ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58, skipping insertion in model container [2018-11-23 13:38:58,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:38:58,297 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:38:58,479 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:38:58,485 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:38:58,555 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:38:58,586 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:38:58,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58 WrapperNode [2018-11-23 13:38:58,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:38:58,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:38:58,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:38:58,587 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:38:58,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:38:58,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:38:58,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:38:58,615 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:38:58,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... [2018-11-23 13:38:58,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:38:58,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:38:58,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:38:58,631 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:38:58,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05bf6dfd-fcda-451c-9a6b-7aedbe693ad9/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 13:38:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:38:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:38:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:38:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:38:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:38:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:38:58,816 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:38:58,816 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 13:38:58,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:58 BoogieIcfgContainer [2018-11-23 13:38:58,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:38:58,817 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 13:38:58,817 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 13:38:58,819 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 13:38:58,820 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:58,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:38:58" (1/3) ... [2018-11-23 13:38:58,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f5dc354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:38:58, skipping insertion in model container [2018-11-23 13:38:58,821 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:58,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:58" (2/3) ... [2018-11-23 13:38:58,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f5dc354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:38:58, skipping insertion in model container [2018-11-23 13:38:58,821 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:58,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:58" (3/3) ... [2018-11-23 13:38:58,823 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrcpy-alloca_true-termination.c.i [2018-11-23 13:38:58,859 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:38:58,860 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 13:38:58,860 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 13:38:58,860 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 13:38:58,860 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:38:58,860 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:38:58,860 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 13:38:58,861 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:38:58,861 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 13:38:58,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 13:38:58,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:58,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:58,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:58,895 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 13:38:58,895 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:38:58,895 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 13:38:58,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 13:38:58,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:58,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:58,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:58,897 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 13:38:58,897 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:38:58,901 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 7#L558true assume !(main_~length1~0 < 1); 10#L558-2true assume !(main_~length2~0 < 1); 13#L561-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.alloc(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset, cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstrcpy_#res.base, cstrcpy_#res.offset;havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, cstrcpy_#t~mem4, cstrcpy_~s1.base, cstrcpy_~s1.offset, cstrcpy_~s2.base, cstrcpy_~s2.offset, cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset, cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~s1.base, cstrcpy_~s1.offset := cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset;cstrcpy_~s2.base, cstrcpy_~s2.offset := cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_~s1.base, cstrcpy_~s1.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_~s2.base, cstrcpy_~s2.offset; 4#L551-3true [2018-11-23 13:38:58,902 INFO L796 eck$LassoCheckResult]: Loop: 4#L551-3true cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset := cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_#t~post2.base, 1 + cstrcpy_#t~post2.offset;cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset := cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_#t~post3.base, 1 + cstrcpy_#t~post3.offset;call cstrcpy_#t~mem4 := read~int(cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, 1);call write~int(cstrcpy_#t~mem4, cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, 1); 12#L551-1true assume !!(0 != cstrcpy_#t~mem4);havoc cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset;havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset;havoc cstrcpy_#t~mem4; 4#L551-3true [2018-11-23 13:38:58,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:58,907 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2018-11-23 13:38:58,908 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:58,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:58,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:58,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:58,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:59,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:59,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1734, now seen corresponding path program 1 times [2018-11-23 13:38:59,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:59,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:59,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:59,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:59,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:59,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:59,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939599, now seen corresponding path program 1 times [2018-11-23 13:38:59,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:59,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:59,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:59,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:59,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:59,364 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2018-11-23 13:38:59,432 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:59,433 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:59,433 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:59,433 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:59,433 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:38:59,433 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:59,433 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:59,433 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:59,434 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcpy-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-23 13:38:59,434 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:59,434 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:59,453 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 13:38:59,457 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 13:38:59,460 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 13:38:59,461 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 13:38:59,471 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 13:38:59,473 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 13:38:59,476 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 13:38:59,478 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 13:38:59,481 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 13:38:59,669 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-11-23 13:38:59,751 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 13:38:59,752 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 13:38:59,754 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 13:38:59,755 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 13:38:59,756 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 13:38:59,757 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 13:38:59,758 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 13:38:59,760 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 13:38:59,761 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 13:39:00,115 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:39:00,119 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:39:00,121 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 13:39:00,123 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,123 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,124 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,124 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,124 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,125 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,126 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,128 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,128 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 13:39:00,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,129 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,130 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,130 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,131 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 13:39:00,131 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,132 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,132 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,133 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,133 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,133 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 13:39:00,134 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,134 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,134 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,134 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,134 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,134 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,135 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,135 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,136 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 13:39:00,136 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,137 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,137 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,137 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,137 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,137 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,137 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,138 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,139 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 13:39:00,139 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,139 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,139 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,139 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,141 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:39:00,141 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,144 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,145 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 13:39:00,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,145 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,146 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,146 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,146 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:39:00,146 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,147 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,148 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 13:39:00,148 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,148 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,148 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,148 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,150 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:39:00,150 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,154 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,154 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 13:39:00,154 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,155 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,155 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,155 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,156 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:39:00,156 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,161 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,162 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 13:39:00,162 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,162 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 13:39:00,162 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,163 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,165 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 13:39:00,166 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,184 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,184 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 13:39:00,185 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,185 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,186 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:39:00,187 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,189 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,189 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 13:39:00,190 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,190 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:39:00,190 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,190 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 13:39:00,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,190 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 13:39:00,191 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:39:00,193 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:39:00,194 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 13:39:00,194 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:39:00,194 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:39:00,195 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:39:00,195 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:39:00,200 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:39:00,200 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:39:00,254 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:39:00,300 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 13:39:00,300 INFO L444 ModelExtractionUtils]: 40 out of 49 variables were initially zero. Simplification set additionally 6 variables to zero. [2018-11-23 13:39:00,302 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:39:00,303 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 13:39:00,303 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:39:00,304 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1, ULTIMATE.start_cstrcpy_~dst~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 - 1*ULTIMATE.start_cstrcpy_~dst~0.offset Supporting invariants [] [2018-11-23 13:39:00,352 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2018-11-23 13:39:00,359 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 13:39:00,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:39:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:39:00,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:39:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:39:00,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:39:00,438 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 13:39:00,448 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 13:39:00,448 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2018-11-23 13:39:00,483 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 24 states and 27 transitions. Complement of second has 6 states. [2018-11-23 13:39:00,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:39:00,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:39:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-23 13:39:00,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 13:39:00,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:39:00,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 13:39:00,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:39:00,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 13:39:00,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:39:00,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2018-11-23 13:39:00,489 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:39:00,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-11-23 13:39:00,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 13:39:00,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 13:39:00,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 13:39:00,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 13:39:00,492 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:39:00,492 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:39:00,492 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:39:00,492 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 13:39:00,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:39:00,492 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:39:00,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 13:39:00,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:39:00 BoogieIcfgContainer [2018-11-23 13:39:00,496 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 13:39:00,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:39:00,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:39:00,496 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:39:00,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:58" (3/4) ... [2018-11-23 13:39:00,499 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:39:00,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:39:00,499 INFO L168 Benchmark]: Toolchain (without parser) took 2246.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:39:00,500 INFO L168 Benchmark]: CDTParser took 0.15 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 13:39:00,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:39:00,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.78 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 13:39:00,501 INFO L168 Benchmark]: Boogie Preprocessor took 15.43 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 13:39:00,503 INFO L168 Benchmark]: RCFGBuilder took 186.08 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:39:00,503 INFO L168 Benchmark]: BuchiAutomizer took 1678.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:39:00,504 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:39:00,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.78 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 15.43 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 186.08 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1678.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * dst and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 4 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital202 mio100 ax108 hnf99 lsp89 ukn92 mio100 lsp48 div100 bol100 ite100 ukn100 eq196 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...