./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/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 1c2f9d054b4fbf31aaebd626db3028f09e8a957b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:02:40,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:02:40,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:02:40,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:02:40,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:02:40,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:02:40,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:02:40,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:02:40,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:02:40,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:02:40,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:02:40,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:02:40,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:02:40,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:02:40,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:02:40,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:02:40,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:02:40,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:02:40,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:02:40,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:02:40,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:02:40,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:02:40,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:02:40,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:02:40,757 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:02:40,757 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:02:40,758 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:02:40,759 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:02:40,759 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:02:40,761 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:02:40,761 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:02:40,762 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:02:40,762 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:02:40,762 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:02:40,763 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:02:40,763 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:02:40,764 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 11:02:40,776 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:02:40,776 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:02:40,777 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:02:40,777 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:02:40,777 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:02:40,777 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:02:40,778 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:02:40,778 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:02:40,779 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:02:40,780 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:02:40,780 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:02:40,782 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:02:40,782 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:02:40,782 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:02:40,782 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:02:40,782 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:02:40,783 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:02:40,783 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:02:40,784 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_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/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 -> 1c2f9d054b4fbf31aaebd626db3028f09e8a957b [2018-11-18 11:02:40,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:02:40,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:02:40,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:02:40,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:02:40,838 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:02:40,838 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-18 11:02:40,879 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/data/1ff6ddd49/a87b98ea90864b778cd070231fd1aa65/FLAGc55626732 [2018-11-18 11:02:41,252 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:02:41,253 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-18 11:02:41,266 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/data/1ff6ddd49/a87b98ea90864b778cd070231fd1aa65/FLAGc55626732 [2018-11-18 11:02:41,620 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/data/1ff6ddd49/a87b98ea90864b778cd070231fd1aa65 [2018-11-18 11:02:41,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:02:41,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:02:41,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:41,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:02:41,628 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:02:41,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:41" (1/1) ... [2018-11-18 11:02:41,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ff84cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:41, skipping insertion in model container [2018-11-18 11:02:41,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:02:41" (1/1) ... [2018-11-18 11:02:41,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:02:41,668 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:02:41,878 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:41,884 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:02:41,921 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:02:42,049 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:02:42,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42 WrapperNode [2018-11-18 11:02:42,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:02:42,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:02:42,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:02:42,051 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:02:42,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:02:42,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:02:42,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:02:42,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:02:42,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... [2018-11-18 11:02:42,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:02:42,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:02:42,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:02:42,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:02:42,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30ce56f0-d7f1-4cde-8d71-6b1ec0f9cf22/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:02:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:02:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:02:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:02:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:02:42,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:02:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:02:42,430 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:02:42,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:42 BoogieIcfgContainer [2018-11-18 11:02:42,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:02:42,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:02:42,431 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:02:42,434 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:02:42,435 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:42,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:02:41" (1/3) ... [2018-11-18 11:02:42,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@635d4d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:02:42, skipping insertion in model container [2018-11-18 11:02:42,436 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:42,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:02:42" (2/3) ... [2018-11-18 11:02:42,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@635d4d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:02:42, skipping insertion in model container [2018-11-18 11:02:42,437 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:02:42,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:42" (3/3) ... [2018-11-18 11:02:42,438 INFO L375 chiAutomizerObserver]: Analyzing ICFG strcasecmp_true-termination.c.i [2018-11-18 11:02:42,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:02:42,495 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:02:42,495 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:02:42,495 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:02:42,495 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:02:42,495 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:02:42,495 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:02:42,495 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:02:42,496 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:02:42,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-18 11:02:42,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-18 11:02:42,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:42,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:42,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 11:02:42,543 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:42,543 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:02:42,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-18 11:02:42,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-18 11:02:42,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:02:42,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:02:42,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 11:02:42,545 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:02:42,552 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L523true assume !(main_~in_len~0 < 1);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.alloc(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet8;havoc main_#t~nondet8; 19#L527true assume !(main_~out_len~0 < 1);call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.alloc(main_~in_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset, strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcasecmp_#res;havoc strcasecmp_#t~mem2, strcasecmp_#t~mem3, strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset, strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset, strcasecmp_~s1.base, strcasecmp_~s1.offset, strcasecmp_~s2.base, strcasecmp_~s2.offset, strcasecmp_~x2~0, strcasecmp_~x1~0;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#in~s1.base, strcasecmp_#in~s1.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#in~s2.base, strcasecmp_#in~s2.offset;havoc strcasecmp_~x2~0;havoc strcasecmp_~x1~0; 16#L510-3true [2018-11-18 11:02:42,553 INFO L796 eck$LassoCheckResult]: Loop: 16#L510-3true assume true; 11#L510-1true assume !false;call strcasecmp_#t~mem2 := read~int(strcasecmp_~s2.base, strcasecmp_~s2.offset, 1);strcasecmp_~x2~0 := strcasecmp_#t~mem2 - 65;havoc strcasecmp_#t~mem2; 7#L511true assume strcasecmp_~x2~0 % 4294967296 < 26;strcasecmp_~x2~0 := 32 + strcasecmp_~x2~0; 12#L511-2true call strcasecmp_#t~mem3 := read~int(strcasecmp_~s1.base, strcasecmp_~s1.offset, 1);strcasecmp_~x1~0 := strcasecmp_#t~mem3 - 65;havoc strcasecmp_#t~mem3; 6#L512true assume strcasecmp_~x1~0 % 4294967296 < 26;strcasecmp_~x1~0 := 32 + strcasecmp_~x1~0; 9#L512-2true strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset := strcasecmp_~s1.base, strcasecmp_~s1.offset;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#t~post4.base, 1 + strcasecmp_#t~post4.offset;havoc strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset;strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset := strcasecmp_~s2.base, strcasecmp_~s2.offset;strcasecmp_~s2.base, strcasecmp_~s2.offset := strcasecmp_#t~post5.base, 1 + strcasecmp_#t~post5.offset;havoc strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset; 4#L514true assume !(strcasecmp_~x2~0 % 4294967296 != strcasecmp_~x1~0 % 4294967296); 3#L516true assume !(4294967231 == strcasecmp_~x1~0 % 4294967296); 16#L510-3true [2018-11-18 11:02:42,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:42,558 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-11-18 11:02:42,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:42,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:42,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:42,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:42,672 INFO L82 PathProgramCache]: Analyzing trace with hash -898548268, now seen corresponding path program 1 times [2018-11-18 11:02:42,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:42,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:42,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:42,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:42,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:42,700 INFO L82 PathProgramCache]: Analyzing trace with hash -273643845, now seen corresponding path program 1 times [2018-11-18 11:02:42,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:02:42,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:02:42,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:02:42,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:02:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:02:43,060 WARN L180 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-18 11:02:43,197 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-18 11:02:43,452 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-11-18 11:02:43,525 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:02:43,525 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:02:43,526 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:02:43,526 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:02:43,526 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:02:43,526 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:02:43,526 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:02:43,526 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:02:43,527 INFO L131 ssoRankerPreferences]: Filename of dumped script: strcasecmp_true-termination.c.i_Iteration1_Lasso [2018-11-18 11:02:43,527 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:02:43,528 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:02:43,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:43,956 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-11-18 11:02:44,149 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2018-11-18 11:02:44,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:02:44,741 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:02:44,746 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:02:44,748 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,749 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,749 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:02:44,750 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,750 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,750 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,752 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:02:44,752 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:02:44,754 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,754 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,755 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,755 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:02:44,755 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,755 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,755 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,756 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:02:44,756 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:02:44,757 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,757 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,757 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:02:44,758 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,758 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,758 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,758 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:02:44,758 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:02:44,759 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,759 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,760 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,760 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:02:44,760 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,760 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,760 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,761 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:02:44,761 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:02:44,761 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,762 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,762 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,762 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,763 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,764 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,765 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,767 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,768 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:02:44,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,769 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,769 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:02:44,770 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:02:44,779 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,780 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,781 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,781 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,781 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,782 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,782 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,785 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,785 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,788 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,788 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,800 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,801 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,801 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,802 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,802 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,802 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,803 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,805 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,806 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,806 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,809 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,809 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,822 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,823 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,825 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,826 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,826 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,826 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,827 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,827 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,829 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:02:44,830 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:02:44,830 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:02:44,830 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:02:44,831 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:02:44,831 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:02:44,836 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:02:44,836 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:02:44,892 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:02:44,930 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:02:44,931 INFO L444 ModelExtractionUtils]: 44 out of 49 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-18 11:02:44,933 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:02:44,934 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-18 11:02:44,934 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:02:44,935 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1, ULTIMATE.start_strcasecmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 - 1*ULTIMATE.start_strcasecmp_~s1.offset Supporting invariants [] [2018-11-18 11:02:45,334 INFO L297 tatePredicateManager]: 17 out of 18 supporting invariants were superfluous and have been removed [2018-11-18 11:02:45,340 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 11:02:45,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:02:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:45,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:02:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:02:45,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:02:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:02:45,501 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-18 11:02:45,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 6 states. [2018-11-18 11:02:45,560 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 6 states. Result 37 states and 47 transitions. Complement of second has 9 states. [2018-11-18 11:02:45,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:02:45,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 11:02:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2018-11-18 11:02:45,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-18 11:02:45,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:02:45,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 12 letters. Loop has 8 letters. [2018-11-18 11:02:45,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:02:45,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 4 letters. Loop has 16 letters. [2018-11-18 11:02:45,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:02:45,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2018-11-18 11:02:45,573 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:02:45,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-11-18 11:02:45,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:02:45,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:02:45,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:02:45,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:02:45,577 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:02:45,577 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:02:45,577 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:02:45,578 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:02:45,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:02:45,578 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:02:45,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 11:02:45,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:02:45 BoogieIcfgContainer [2018-11-18 11:02:45,583 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:02:45,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:02:45,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:02:45,584 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:02:45,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:02:42" (3/4) ... [2018-11-18 11:02:45,587 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:02:45,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:02:45,588 INFO L168 Benchmark]: Toolchain (without parser) took 3964.16 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.0 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,589 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:02:45,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -238.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,590 INFO L168 Benchmark]: Boogie Preprocessor took 22.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,591 INFO L168 Benchmark]: RCFGBuilder took 301.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,591 INFO L168 Benchmark]: BuchiAutomizer took 3152.54 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 45.6 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:02:45,592 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:02:45,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 950.4 MB in the beginning and 1.2 GB in the end (delta: -238.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 301.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3152.54 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 45.6 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.2 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.09 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s1 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 16 SDslu, 22 SDs, 0 SdLazy, 14 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital224 mio100 ax100 hnf100 lsp97 ukn90 mio100 lsp45 div161 bol100 ite100 ukn100 eq146 hnf72 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...