./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e321f94e243f740485324fea88a9a86c3c635cf ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:16:33,517 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:16:33,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:16:33,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:16:33,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:16:33,526 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:16:33,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:16:33,528 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:16:33,529 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:16:33,530 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:16:33,530 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:16:33,531 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:16:33,531 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:16:33,532 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:16:33,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:16:33,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:16:33,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:16:33,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:16:33,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:16:33,538 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:16:33,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:16:33,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:16:33,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:16:33,541 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:16:33,541 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:16:33,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:16:33,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:16:33,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:16:33,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:16:33,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:16:33,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:16:33,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:16:33,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:16:33,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:16:33,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:16:33,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:16:33,547 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 06:16:33,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:16:33,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:16:33,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:16:33,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:16:33,559 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 06:16:33,560 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 06:16:33,560 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 06:16:33,560 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 06:16:33,560 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 06:16:33,560 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 06:16:33,560 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 06:16:33,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 06:16:33,561 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 06:16:33,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:16:33,562 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 06:16:33,562 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 06:16:33,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:16:33,562 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:16:33,562 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 06:16:33,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:16:33,563 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 06:16:33,563 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 06:16:33,563 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 06:16:33,564 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_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e321f94e243f740485324fea88a9a86c3c635cf [2018-11-10 06:16:33,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:16:33,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:16:33,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:16:33,595 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:16:33,595 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:16:33,596 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i [2018-11-10 06:16:33,632 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/data/0f055ecc2/a67bf0b1241f44d48e9f4e188526192e/FLAG3bff8d018 [2018-11-10 06:16:34,066 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:16:34,066 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/sv-benchmarks/c/termination-libowfat/strlen_true-termination.c.i [2018-11-10 06:16:34,076 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/data/0f055ecc2/a67bf0b1241f44d48e9f4e188526192e/FLAG3bff8d018 [2018-11-10 06:16:34,087 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/data/0f055ecc2/a67bf0b1241f44d48e9f4e188526192e [2018-11-10 06:16:34,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:16:34,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:16:34,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:34,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:16:34,093 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:16:34,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c475c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34, skipping insertion in model container [2018-11-10 06:16:34,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:16:34,127 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:16:34,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:34,314 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:16:34,342 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:16:34,367 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:16:34,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34 WrapperNode [2018-11-10 06:16:34,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:16:34,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:34,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:16:34,368 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:16:34,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:16:34,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:16:34,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:16:34,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:16:34,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... [2018-11-10 06:16:34,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:16:34,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:16:34,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:16:34,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:16:34,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_edd85f73-515f-47d3-b3cb-e76c5d5cf0e5/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:16:34,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 06:16:34,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 06:16:34,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:16:34,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:16:34,655 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:16:34,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:34 BoogieIcfgContainer [2018-11-10 06:16:34,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:16:34,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 06:16:34,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 06:16:34,660 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 06:16:34,660 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:16:34,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 06:16:34" (1/3) ... [2018-11-10 06:16:34,662 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20bda6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:16:34, skipping insertion in model container [2018-11-10 06:16:34,662 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:16:34,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:34" (2/3) ... [2018-11-10 06:16:34,662 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20bda6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:16:34, skipping insertion in model container [2018-11-10 06:16:34,662 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:16:34,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:34" (3/3) ... [2018-11-10 06:16:34,664 INFO L375 chiAutomizerObserver]: Analyzing ICFG strlen_true-termination.c.i [2018-11-10 06:16:34,712 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:16:34,712 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 06:16:34,712 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 06:16:34,713 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 06:16:34,713 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:16:34,713 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:16:34,713 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 06:16:34,713 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:16:34,713 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 06:16:34,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-10 06:16:34,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 06:16:34,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:16:34,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:16:34,752 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 06:16:34,752 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 06:16:34,752 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 06:16:34,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-10 06:16:34,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 06:16:34,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:16:34,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:16:34,753 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 06:16:34,754 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 06:16:34,760 INFO L793 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~ret7, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 7#L514true assume !(main_~in_len~0 < 1);#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~in_len~0;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~hay~0.base, main_~hay~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset; 3#L516true SUMMARY for call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1) * 1, 1); srcloc: L516 5#L516-1true assume { :begin_inline_strlen } true;strlen_#in~s.base, strlen_#in~s.offset := main_~hay~0.base, main_~hay~0.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 13#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 6#L509-5true [2018-11-10 06:16:34,761 INFO L795 eck$LassoCheckResult]: Loop: 6#L509-5true assume true; 14#L509-1true SUMMARY for call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); srcloc: L509-1 15#L509-2true assume !!(strlen_#t~mem4 != 0);havoc strlen_#t~mem4;strlen_#t~pre3 := strlen_~i~0 + 1;strlen_~i~0 := strlen_~i~0 + 1;havoc strlen_#t~pre3; 4#L509-4true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, strlen_~s.offset + 1;strlen_~s.base, strlen_~s.offset := strlen_~s.base, strlen_~s.offset + 1;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 6#L509-5true [2018-11-10 06:16:34,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash 889567241, now seen corresponding path program 1 times [2018-11-10 06:16:34,767 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:16:34,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:16:34,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:34,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1478788, now seen corresponding path program 1 times [2018-11-10 06:16:34,874 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:16:34,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:16:34,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:34,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:34,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1274086540, now seen corresponding path program 1 times [2018-11-10 06:16:34,887 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:16:34,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:16:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:16:34,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:16:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:16:35,128 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-11-10 06:16:35,188 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:16:35,189 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:16:35,189 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:16:35,189 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:16:35,189 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:16:35,189 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:16:35,190 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:16:35,190 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:16:35,190 INFO L131 ssoRankerPreferences]: Filename of dumped script: strlen_true-termination.c.i_Iteration1_Lasso [2018-11-10 06:16:35,190 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:16:35,190 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:16:35,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:16:35,649 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:16:35,653 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:16:35,654 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,655 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-10 06:16:35,656 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:16:35,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,661 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-10 06:16:35,661 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:16:35,690 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:16:35,690 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,691 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:16:35,691 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:16:35,692 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,693 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:16:35,694 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:16:35,699 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:16:35,700 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,700 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:16:35,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:16:35,701 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 06:16:35,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,702 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 06:16:35,702 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:16:35,705 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:16:35,705 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,706 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,706 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:16:35,706 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:16:35,706 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,707 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:16:35,707 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:16:35,710 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:16:35,711 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,711 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,712 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:16:35,712 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:16:35,712 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,713 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:16:35,714 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:16:35,719 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:16:35,719 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:16:35,719 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:16:35,720 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:16:35,720 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:16:35,720 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:16:35,723 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:16:35,723 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:16:35,758 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:16:35,786 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 06:16:35,786 INFO L444 ModelExtractionUtils]: 26 out of 31 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-10 06:16:35,788 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:16:35,789 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-10 06:16:35,789 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:16:35,790 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s.offset, v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1) = -1*ULTIMATE.start_strlen_~s.offset + 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 Supporting invariants [] [2018-11-10 06:16:35,815 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-10 06:16:35,822 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 06:16:35,823 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-10 06:16:35,824 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-11-10 06:16:35,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:16:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:16:35,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:16:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:16:35,896 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2018-11-10 06:16:35,898 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 6 states. [2018-11-10 06:16:35,951 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 6 states. Result 36 states and 38 transitions. Complement of second has 9 states. [2018-11-10 06:16:35,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 06:16:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-10 06:16:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 27 transitions. [2018-11-10 06:16:35,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-10 06:16:35,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:16:35,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-10 06:16:35,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:16:35,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 27 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-10 06:16:35,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:16:35,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 38 transitions. [2018-11-10 06:16:35,957 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:16:35,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2018-11-10 06:16:35,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 06:16:35,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 06:16:35,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 06:16:35,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:16:35,961 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:16:35,961 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:16:35,961 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:16:35,961 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 06:16:35,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:16:35,961 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:16:35,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 06:16:35,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 06:16:35 BoogieIcfgContainer [2018-11-10 06:16:35,965 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 06:16:35,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:16:35,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:16:35,965 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:16:35,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:16:34" (3/4) ... [2018-11-10 06:16:35,968 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 06:16:35,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:16:35,968 INFO L168 Benchmark]: Toolchain (without parser) took 1878.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 957.6 MB in the beginning and 915.7 MB in the end (delta: 42.0 MB). Peak memory consumption was 191.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,969 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-10 06:16:35,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -210.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,970 INFO L168 Benchmark]: Boogie Preprocessor took 20.95 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. [2018-11-10 06:16:35,971 INFO L168 Benchmark]: RCFGBuilder took 187.58 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,971 INFO L168 Benchmark]: BuchiAutomizer took 1308.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 918.3 MB in the end (delta: 209.9 MB). Peak memory consumption was 209.9 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,972 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory was 918.3 MB in the beginning and 915.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:16:35,975 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 276.93 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -210.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.95 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. * RCFGBuilder took 187.58 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: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1308.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 918.3 MB in the end (delta: 209.9 MB). Peak memory consumption was 209.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory was 918.3 MB in the beginning and 915.7 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[#Ultimate.alloc_#res] and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 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 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: 16 SDtfs, 32 SDslu, 17 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax100 hnf99 lsp88 ukn110 mio100 lsp39 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms 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...