./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-libowfat/wcsrchr_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-libowfat/wcsrchr_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 68f8eea80a577660110c4d18097f51970ea54e3a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:42:40,268 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:42:40,270 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:42:40,283 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:42:40,283 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:42:40,284 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:42:40,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:42:40,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:42:40,289 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:42:40,290 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:42:40,291 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:42:40,291 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:42:40,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:42:40,293 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:42:40,294 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:42:40,295 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:42:40,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:42:40,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:42:40,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:42:40,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:42:40,311 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:42:40,314 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:42:40,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:42:40,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:42:40,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:42:40,323 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:42:40,326 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:42:40,327 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:42:40,328 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:42:40,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:42:40,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:42:40,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:42:40,333 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:42:40,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:42:40,335 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:42:40,337 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:42:40,337 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:42:40,370 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:42:40,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:42:40,374 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:42:40,375 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:42:40,375 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:42:40,375 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:42:40,375 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:42:40,375 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:42:40,377 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:42:40,377 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:42:40,377 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:42:40,377 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:42:40,378 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:42:40,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:42:40,379 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:42:40,379 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:42:40,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:42:40,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:42:40,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:42:40,380 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:42:40,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:42:40,380 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:42:40,380 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:42:40,381 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:42:40,381 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 68f8eea80a577660110c4d18097f51970ea54e3a [2019-01-01 21:42:40,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:42:40,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:42:40,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:42:40,435 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:42:40,435 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:42:40,436 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-libowfat/wcsrchr_true-termination.c.i [2019-01-01 21:42:40,496 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5ee5821/2dbf9714fca84cea9afa4c4ed3862c34/FLAG0e4a195d1 [2019-01-01 21:42:41,016 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:42:41,017 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-libowfat/wcsrchr_true-termination.c.i [2019-01-01 21:42:41,043 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5ee5821/2dbf9714fca84cea9afa4c4ed3862c34/FLAG0e4a195d1 [2019-01-01 21:42:41,302 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d5ee5821/2dbf9714fca84cea9afa4c4ed3862c34 [2019-01-01 21:42:41,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:42:41,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:42:41,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:42:41,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:42:41,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:42:41,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:41,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1f2be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41, skipping insertion in model container [2019-01-01 21:42:41,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:41,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:42:41,379 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:42:41,775 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:42:41,794 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:42:41,941 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:42:41,998 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:42:41,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41 WrapperNode [2019-01-01 21:42:41,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:42:41,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:42:41,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:42:42,000 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:42:42,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:42:42,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:42:42,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:42:42,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:42:42,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... [2019-01-01 21:42:42,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:42:42,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:42:42,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:42:42,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:42:42,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-01 21:42:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 21:42:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 21:42:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 21:42:42,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 21:42:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:42:42,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:42:42,530 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:42:42,530 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-01 21:42:42,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:42 BoogieIcfgContainer [2019-01-01 21:42:42,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:42:42,532 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:42:42,532 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:42:42,535 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:42:42,536 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:42,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:42:41" (1/3) ... [2019-01-01 21:42:42,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c157dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:42:42, skipping insertion in model container [2019-01-01 21:42:42,538 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:42,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:42:41" (2/3) ... [2019-01-01 21:42:42,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c157dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:42:42, skipping insertion in model container [2019-01-01 21:42:42,538 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:42:42,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:42" (3/3) ... [2019-01-01 21:42:42,540 INFO L375 chiAutomizerObserver]: Analyzing ICFG wcsrchr_true-termination.c.i [2019-01-01 21:42:42,603 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:42:42,604 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:42:42,604 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:42:42,605 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:42:42,605 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:42:42,605 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:42:42,605 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:42:42,605 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:42:42,606 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:42:42,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 21:42:42,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 21:42:42,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:42:42,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:42:42,651 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-01 21:42:42,652 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-01 21:42:42,652 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:42:42,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 21:42:42,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 21:42:42,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:42:42,654 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:42:42,654 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-01 21:42:42,654 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-01 21:42:42,664 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~needle~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 6#L515true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(4 * main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + 4 * (main_~in_len~0 - 1), 4);main_~needle~0 := main_#t~nondet7;havoc main_#t~nondet7;wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset, wcsrchr_#in~wc := main_~hay~0.base, main_~hay~0.offset, main_~needle~0;havoc wcsrchr_#res.base, wcsrchr_#res.offset;havoc wcsrchr_#t~mem3, wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset, wcsrchr_#t~mem4, wcsrchr_~wcs.base, wcsrchr_~wcs.offset, wcsrchr_~wc, wcsrchr_~last~0.base, wcsrchr_~last~0.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset;wcsrchr_~wc := wcsrchr_#in~wc;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := 0, 0; 7#L508-4true [2019-01-01 21:42:42,664 INFO L796 eck$LassoCheckResult]: Loop: 7#L508-4true call wcsrchr_#t~mem4 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 12#L508-1true assume !!(0 != wcsrchr_#t~mem4);havoc wcsrchr_#t~mem4;call wcsrchr_#t~mem3 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 8#L509true assume wcsrchr_#t~mem3 == wcsrchr_~wc;havoc wcsrchr_#t~mem3;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := wcsrchr_~wcs.base, wcsrchr_~wcs.offset; 4#L508-3true wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;havoc wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset; 7#L508-4true [2019-01-01 21:42:42,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:42,671 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-01-01 21:42:42,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:42,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:42,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:42,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:42,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1267210, now seen corresponding path program 1 times [2019-01-01 21:42:42,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:42,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:42,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:42,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:42,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876973, now seen corresponding path program 1 times [2019-01-01 21:42:42,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:42:42,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:42:42,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:42:42,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:42:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:42:43,026 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-01-01 21:42:43,730 WARN L181 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-01-01 21:42:43,878 WARN L181 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-01-01 21:42:43,891 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:42:43,893 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:42:43,895 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:42:43,895 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:42:43,896 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:42:43,897 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:42:43,897 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:42:43,897 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:42:43,897 INFO L131 ssoRankerPreferences]: Filename of dumped script: wcsrchr_true-termination.c.i_Iteration1_Lasso [2019-01-01 21:42:43,897 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:42:43,898 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:42:43,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:43,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,544 WARN L181 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-01-01 21:42:44,664 WARN L181 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-01-01 21:42:44,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:44,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:42:45,342 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:42:45,354 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:42:45,357 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 [2019-01-01 21:42:45,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,359 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,360 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,360 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,360 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,362 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,362 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,366 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 [2019-01-01 21:42:45,367 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,367 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,367 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,367 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,368 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,368 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,369 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,370 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 [2019-01-01 21:42:45,371 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,371 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,372 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,372 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,373 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,373 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 [2019-01-01 21:42:45,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,375 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,375 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,375 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,376 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,377 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 [2019-01-01 21:42:45,377 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,378 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,378 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,378 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,378 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,379 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,379 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,380 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,380 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 [2019-01-01 21:42:45,381 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,381 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,381 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,381 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,382 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,382 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,382 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,383 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,384 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 [2019-01-01 21:42:45,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,385 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,385 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,385 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,388 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,388 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,392 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,392 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 [2019-01-01 21:42:45,393 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,393 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,393 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,394 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,396 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,396 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,400 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,400 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 [2019-01-01 21:42:45,401 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:42:45,401 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,402 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,402 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:42:45,402 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:42:45,404 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,404 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 [2019-01-01 21:42:45,405 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,405 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,411 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,413 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,455 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,459 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 [2019-01-01 21:42:45,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,460 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,460 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,465 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,465 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,469 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,470 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 [2019-01-01 21:42:45,470 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,470 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,472 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-01 21:42:45,472 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,485 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-01-01 21:42:45,486 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-01-01 21:42:45,559 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,566 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 [2019-01-01 21:42:45,567 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,567 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,567 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,567 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,569 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,569 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,572 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,576 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 [2019-01-01 21:42:45,576 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,577 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-01 21:42:45,577 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,577 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,589 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-01 21:42:45,589 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:42:45,636 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 [2019-01-01 21:42:45,639 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:42:45,639 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:42:45,639 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:42:45,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:42:45,643 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:42:45,644 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:42:45,732 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:42:45,796 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-01-01 21:42:45,796 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. [2019-01-01 21:42:45,798 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:42:45,800 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 21:42:45,801 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:42:45,801 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_wcsrchr_~wcs.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1) = -1*ULTIMATE.start_wcsrchr_~wcs.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 Supporting invariants [] [2019-01-01 21:42:45,850 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-01-01 21:42:45,861 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-01 21:42:45,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:42:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:42:45,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:42:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:42:45,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:42:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:42:46,017 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 21:42:46,019 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-01-01 21:42:46,134 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2019-01-01 21:42:46,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:42:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:42:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-01-01 21:42:46,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 4 letters. [2019-01-01 21:42:46,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:42:46,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2019-01-01 21:42:46,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:42:46,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 8 letters. [2019-01-01 21:42:46,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:42:46,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2019-01-01 21:42:46,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:42:46,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-01-01 21:42:46,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:42:46,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:42:46,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:42:46,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:42:46,152 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:42:46,152 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:42:46,152 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:42:46,152 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:42:46,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:42:46,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:42:46,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:42:46,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:42:46 BoogieIcfgContainer [2019-01-01 21:42:46,160 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:42:46,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:42:46,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:42:46,161 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:42:46,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:42:42" (3/4) ... [2019-01-01 21:42:46,166 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:42:46,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:42:46,167 INFO L168 Benchmark]: Toolchain (without parser) took 4861.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 898.6 MB in the end (delta: 52.8 MB). Peak memory consumption was 203.8 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:46,169 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:46,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:46,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:46,171 INFO L168 Benchmark]: Boogie Preprocessor took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:46,171 INFO L168 Benchmark]: RCFGBuilder took 425.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:46,172 INFO L168 Benchmark]: BuchiAutomizer took 3628.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 213.9 MB). Peak memory consumption was 213.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:42:46,173 INFO L168 Benchmark]: Witness Printer took 5.24 ms. Allocated memory is still 1.2 GB. Free memory is still 898.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:42:46,179 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 691.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 425.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3628.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.6 MB in the end (delta: 213.9 MB). Peak memory consumption was 213.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.24 ms. Allocated memory is still 1.2 GB. Free memory is still 898.6 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 -1 * wcs + unknown-#length-unknown[__builtin_alloca (in_len*sizeof(int))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. 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: 9 SDtfs, 10 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax100 hnf100 lsp95 ukn88 mio100 lsp45 div100 bol100 ite100 ukn100 eq188 hnf89 smp100 dnf100 smp100 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 89ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...