./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/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_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/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 0.1.23-1dbac8b [2018-11-10 13:18:53,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:18:53,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:18:53,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:18:53,173 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:18:53,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:18:53,174 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:18:53,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:18:53,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:18:53,177 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:18:53,177 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:18:53,178 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:18:53,178 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:18:53,179 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:18:53,179 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:18:53,180 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:18:53,180 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:18:53,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:18:53,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:18:53,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:18:53,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:18:53,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:18:53,187 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:18:53,187 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:18:53,187 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:18:53,188 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:18:53,188 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:18:53,188 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:18:53,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:18:53,189 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:18:53,189 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:18:53,190 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:18:53,190 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:18:53,190 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:18:53,190 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:18:53,191 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:18:53,191 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 13:18:53,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:18:53,199 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:18:53,199 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:18:53,200 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 13:18:53,200 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 13:18:53,201 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 13:18:53,201 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 13:18:53,202 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:18:53,202 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 13:18:53,202 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 13:18:53,202 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:18:53,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:18:53,202 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 13:18:53,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:18:53,203 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:18:53,203 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 13:18:53,203 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 13:18:53,204 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_b6da137a-f26c-4311-98ae-26f583dbd72e/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 [2018-11-10 13:18:53,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:18:53,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:18:53,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:18:53,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:18:53,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:18:53,237 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-10 13:18:53,273 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/data/5e7c32e78/accfc34eae47435e9707aed2a7edd4c7/FLAGcbe9a7bb6 [2018-11-10 13:18:53,690 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:18:53,690 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/sv-benchmarks/c/termination-libowfat/strcasecmp_true-termination.c.i [2018-11-10 13:18:53,697 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/data/5e7c32e78/accfc34eae47435e9707aed2a7edd4c7/FLAGcbe9a7bb6 [2018-11-10 13:18:53,705 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/bin-2019/uautomizer/data/5e7c32e78/accfc34eae47435e9707aed2a7edd4c7 [2018-11-10 13:18:53,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:18:53,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:18:53,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:18:53,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:18:53,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:18:53,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:53,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1039c3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53, skipping insertion in model container [2018-11-10 13:18:53,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:53,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:18:53,745 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:18:53,921 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:18:53,927 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:18:53,956 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:18:53,979 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:18:53,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53 WrapperNode [2018-11-10 13:18:53,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:18:53,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:18:53,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:18:53,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:18:54,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:18:54,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:18:54,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:18:54,053 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:18:54,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... [2018-11-10 13:18:54,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:18:54,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:18:54,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:18:54,068 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:18:54,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b6da137a-f26c-4311-98ae-26f583dbd72e/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 13:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 13:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 13:18:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:18:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:18:54,327 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:18:54,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:18:54 BoogieIcfgContainer [2018-11-10 13:18:54,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:18:54,328 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 13:18:54,328 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 13:18:54,332 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 13:18:54,333 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 13:18:54,333 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 01:18:53" (1/3) ... [2018-11-10 13:18:54,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d1c1dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 01:18:54, skipping insertion in model container [2018-11-10 13:18:54,334 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 13:18:54,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:18:53" (2/3) ... [2018-11-10 13:18:54,334 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d1c1dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 01:18:54, skipping insertion in model container [2018-11-10 13:18:54,334 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 13:18:54,334 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:18:54" (3/3) ... [2018-11-10 13:18:54,336 INFO L375 chiAutomizerObserver]: Analyzing ICFG strcasecmp_true-termination.c.i [2018-11-10 13:18:54,375 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:18:54,376 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 13:18:54,376 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 13:18:54,376 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 13:18:54,376 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:18:54,376 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:18:54,376 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 13:18:54,376 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:18:54,377 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 13:18:54,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2018-11-10 13:18:54,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-11-10 13:18:54,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 13:18:54,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 13:18:54,410 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:18:54,410 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:18:54,410 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 13:18:54,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2018-11-10 13:18:54,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-11-10 13:18:54,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 13:18:54,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 13:18:54,413 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:18:54,413 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:18:54,419 INFO L793 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#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; 7#L523true 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~malloc7.base, main_#t~malloc7.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~in~0.base, main_~in~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset; 4#L525true SUMMARY for call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1) * 1, 1); srcloc: L525 6#L525-1true main_~out_len~0 := main_#t~nondet8;havoc main_#t~nondet8; 26#L527true assume !(main_~out_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~malloc9.base, main_#t~malloc9.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~out~0.base, main_~out~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset; 20#L529true SUMMARY for call write~int(0, main_~out~0.base, main_~out~0.offset + (main_~out_len~0 - 1) * 1, 1); srcloc: L529 24#L529-1true 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; 21#L510-3true [2018-11-10 13:18:54,419 INFO L795 eck$LassoCheckResult]: Loop: 21#L510-3true assume true; 14#L510-1true assume !false; 9#L511true SUMMARY for call strcasecmp_#t~mem2 := read~int(strcasecmp_~s2.base, strcasecmp_~s2.offset, 1); srcloc: L511 12#L511-1true strcasecmp_~x2~0 := strcasecmp_#t~mem2 - 65;havoc strcasecmp_#t~mem2; 15#L511-2true assume !(strcasecmp_~x2~0 % 4294967296 < 26); 22#L511-4true SUMMARY for call strcasecmp_#t~mem3 := read~int(strcasecmp_~s1.base, strcasecmp_~s1.offset, 1); srcloc: L511-4 8#L512true strcasecmp_~x1~0 := strcasecmp_#t~mem3 - 65;havoc strcasecmp_#t~mem3; 10#L512-1true assume strcasecmp_~x1~0 % 4294967296 < 26;strcasecmp_~x1~0 := strcasecmp_~x1~0 + 32; 16#L512-3true strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset := strcasecmp_~s1.base, strcasecmp_~s1.offset;strcasecmp_~s1.base, strcasecmp_~s1.offset := strcasecmp_#t~post4.base, strcasecmp_#t~post4.offset + 1;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, strcasecmp_#t~post5.offset + 1;havoc strcasecmp_#t~post5.base, strcasecmp_#t~post5.offset; 5#L514true assume !(strcasecmp_~x2~0 % 4294967296 != strcasecmp_~x1~0 % 4294967296); 3#L516true assume !(strcasecmp_~x1~0 % 4294967296 == 4294967231); 21#L510-3true [2018-11-10 13:18:54,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:18:54,424 INFO L82 PathProgramCache]: Analyzing trace with hash 175627178, now seen corresponding path program 1 times [2018-11-10 13:18:54,425 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:18:54,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:18:54,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:18:54,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:18:54,530 INFO L82 PathProgramCache]: Analyzing trace with hash -2007848893, now seen corresponding path program 1 times [2018-11-10 13:18:54,530 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:18:54,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:18:54,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:18:54,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:18:54,561 INFO L82 PathProgramCache]: Analyzing trace with hash 708450554, now seen corresponding path program 1 times [2018-11-10 13:18:54,561 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:18:54,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:18:54,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:18:54,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:18:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:18:54,746 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-11-10 13:18:55,013 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2018-11-10 13:18:55,105 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 13:18:55,106 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 13:18:55,106 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 13:18:55,107 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 13:18:55,107 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 13:18:55,107 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 13:18:55,107 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 13:18:55,107 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 13:18:55,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: strcasecmp_true-termination.c.i_Iteration1_Lasso [2018-11-10 13:18:55,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 13:18:55,108 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 13:18:55,130 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 13:18:55,135 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 13:18:55,137 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 13:18:55,141 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 13:18:55,144 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 13:18:55,153 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 13:18:55,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 13:18:55,164 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 13:18:55,166 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 13:18:55,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 13:18:55,454 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2018-11-10 13:18:55,658 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2018-11-10 13:18:55,658 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 13:18:55,660 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 13:18:55,661 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 13:18:55,662 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 13:18:56,133 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 13:18:56,137 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 13:18:56,139 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 13:18:56,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,141 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,143 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,143 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,145 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,145 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 13:18:56,146 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,146 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,146 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,146 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,146 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,147 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,147 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,148 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,149 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 13:18:56,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,150 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,150 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,150 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,150 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,151 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,151 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 13:18:56,152 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,152 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,152 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,152 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,152 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,153 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,153 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,153 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,154 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 13:18:56,155 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,157 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,157 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,157 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,159 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 13:18:56,159 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 13:18:56,162 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,162 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 13:18:56,162 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,163 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,163 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,163 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,163 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,163 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,164 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,172 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,172 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 13:18:56,173 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,173 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,173 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,173 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,173 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,173 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,174 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,174 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,175 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 13:18:56,175 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,175 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,177 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 13:18:56,177 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 13:18:56,180 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,180 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 13:18:56,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,181 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 13:18:56,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,181 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,182 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 13:18:56,182 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 13:18:56,182 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,183 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 13:18:56,183 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,183 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,183 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,187 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 13:18:56,188 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 13:18:56,191 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 13:18:56,191 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 13:18:56,192 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 13:18:56,192 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 13:18:56,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 13:18:56,192 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 13:18:56,199 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 13:18:56,199 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 13:18:56,267 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 13:18:56,297 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 13:18:56,298 INFO L444 ModelExtractionUtils]: 46 out of 52 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-10 13:18:56,299 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 13:18:56,301 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-10 13:18:56,301 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 13:18:56,301 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~out~0.base)_1, ULTIMATE.start_strcasecmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~out~0.base)_1 - 1*ULTIMATE.start_strcasecmp_~s1.offset Supporting invariants [] [2018-11-10 13:18:56,363 INFO L297 tatePredicateManager]: 16 out of 18 supporting invariants were superfluous and have been removed [2018-11-10 13:18:56,373 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-10 13:18:56,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:18:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:18:56,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:18:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:18:56,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:18:56,494 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 13:18:56,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2018-11-10 13:18:56,505 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 7 states. [2018-11-10 13:18:56,568 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 7 states. Result 53 states and 62 transitions. Complement of second has 9 states. [2018-11-10 13:18:56,568 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 13:18:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-10 13:18:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2018-11-10 13:18:56,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 8 letters. Loop has 11 letters. [2018-11-10 13:18:56,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 13:18:56,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 19 letters. Loop has 11 letters. [2018-11-10 13:18:56,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 13:18:56,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 8 letters. Loop has 22 letters. [2018-11-10 13:18:56,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 13:18:56,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 62 transitions. [2018-11-10 13:18:56,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 13:18:56,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 0 states and 0 transitions. [2018-11-10 13:18:56,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 13:18:56,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 13:18:56,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 13:18:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 13:18:56,580 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:18:56,580 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:18:56,580 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:18:56,580 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 13:18:56,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:18:56,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 13:18:56,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 13:18:56,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 01:18:56 BoogieIcfgContainer [2018-11-10 13:18:56,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 13:18:56,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:18:56,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:18:56,585 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:18:56,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:18:54" (3/4) ... [2018-11-10 13:18:56,588 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:18:56,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:18:56,588 INFO L168 Benchmark]: Toolchain (without parser) took 2881.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.6 MB in the beginning and 873.5 MB in the end (delta: 84.1 MB). Peak memory consumption was 218.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:18:56,589 INFO L168 Benchmark]: CDTParser took 0.11 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 13:18:56,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.94 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 13:18:56,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:18:56,590 INFO L168 Benchmark]: Boogie Preprocessor took 15.10 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 13:18:56,591 INFO L168 Benchmark]: RCFGBuilder took 259.80 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:18:56,591 INFO L168 Benchmark]: BuchiAutomizer took 2256.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.5 MB in the end (delta: 229.8 MB). Peak memory consumption was 229.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:18:56,592 INFO L168 Benchmark]: Witness Printer took 2.80 ms. Allocated memory is still 1.2 GB. Free memory is still 873.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:18:56,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.94 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 72.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.10 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 259.80 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2256.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.5 MB in the end (delta: 229.8 MB). Peak memory consumption was 229.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.80 ms. Allocated memory is still 1.2 GB. Free memory is still 873.5 MB. 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[out] + -1 * s1 and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. 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: 27 SDtfs, 38 SDslu, 34 SDs, 0 SdLazy, 11 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital237 mio100 ax100 hnf100 lsp97 ukn112 mio100 lsp38 div146 bol100 ite100 ukn100 eq146 hnf81 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms 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...