./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f 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/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 707f24c72c63346ec05641b1665aeeecec8225e6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 04:57:53,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:57:53,184 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:57:53,201 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:57:53,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:57:53,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:57:53,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:57:53,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:57:53,213 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:57:53,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:57:53,218 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:57:53,219 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:57:53,220 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:57:53,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:57:53,222 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:57:53,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:57:53,224 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:57:53,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:57:53,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:57:53,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:57:53,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:57:53,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:57:53,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:57:53,234 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:57:53,234 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:57:53,235 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:57:53,236 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:57:53,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:57:53,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:57:53,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:57:53,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:57:53,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:57:53,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:57:53,240 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:57:53,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:57:53,242 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:57:53,243 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:57:53,269 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:57:53,269 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:57:53,271 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:57:53,272 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:57:53,272 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:57:53,272 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:57:53,272 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:57:53,273 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:57:53,273 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:57:53,273 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:57:53,273 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:57:53,273 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:57:53,273 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:57:53,275 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:57:53,275 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:57:53,276 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:57:53,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:57:53,276 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:57:53,276 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:57:53,276 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:57:53,277 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:57:53,279 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:57:53,279 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:57:53,279 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:57:53,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:57:53,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:57:53,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:57:53,281 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:57:53,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:57:53,281 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:57:53,281 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:57:53,283 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:57:53,284 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707f24c72c63346ec05641b1665aeeecec8225e6 [2019-01-14 04:57:53,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:57:53,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:57:53,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:57:53,359 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:57:53,360 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:57:53,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:53,427 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbda0d7d/ed9b01b835f7470fb975c53d44918cbe/FLAGd57f4ece8 [2019-01-14 04:57:53,852 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:57:53,853 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:53,868 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbda0d7d/ed9b01b835f7470fb975c53d44918cbe/FLAGd57f4ece8 [2019-01-14 04:57:54,208 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcbda0d7d/ed9b01b835f7470fb975c53d44918cbe [2019-01-14 04:57:54,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:57:54,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:57:54,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:57:54,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:57:54,217 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:57:54,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728b6bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54, skipping insertion in model container [2019-01-14 04:57:54,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:57:54,278 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:57:54,563 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:57:54,580 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:57:54,648 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:57:54,713 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:57:54,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54 WrapperNode [2019-01-14 04:57:54,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:57:54,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:57:54,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:57:54,715 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:57:54,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:57:54,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:57:54,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:57:54,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:57:54,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (1/1) ... [2019-01-14 04:57:54,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:57:54,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:57:54,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:57:54,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:57:54,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (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 [2019-01-14 04:57:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 04:57:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 04:57:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 04:57:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:57:54,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:57:55,318 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:57:55,319 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 04:57:55,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:55 BoogieIcfgContainer [2019-01-14 04:57:55,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:57:55,321 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:57:55,321 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:57:55,325 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:57:55,326 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:55,326 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:57:54" (1/3) ... [2019-01-14 04:57:55,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed4b9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:57:55, skipping insertion in model container [2019-01-14 04:57:55,327 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:55,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:54" (2/3) ... [2019-01-14 04:57:55,328 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ed4b9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:57:55, skipping insertion in model container [2019-01-14 04:57:55,328 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:55,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:55" (3/3) ... [2019-01-14 04:57:55,330 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:55,390 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:57:55,390 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:57:55,390 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:57:55,391 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:57:55,391 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:57:55,391 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:57:55,391 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:57:55,391 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:57:55,391 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:57:55,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-01-14 04:57:55,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 04:57:55,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:57:55,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:57:55,443 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:57:55,443 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 04:57:55,443 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:57:55,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-01-14 04:57:55,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 04:57:55,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:57:55,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:57:55,446 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:57:55,446 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 04:57:55,455 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L557true assume !(main_~length~0 < 1); 6#L557-2true assume !(main_~n~0 < 1); 17#L560-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemrchr_#in~s.base, cmemrchr_#in~s.offset, cmemrchr_#in~c, cmemrchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemrchr_#res.base, cmemrchr_#res.offset;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, cmemrchr_#t~mem4, cmemrchr_#t~pre2, cmemrchr_~s.base, cmemrchr_~s.offset, cmemrchr_~c, cmemrchr_~n, cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset;cmemrchr_~s.base, cmemrchr_~s.offset := cmemrchr_#in~s.base, cmemrchr_#in~s.offset;cmemrchr_~c := cmemrchr_#in~c;cmemrchr_~n := cmemrchr_#in~n;havoc cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset; 7#L544true assume 0 != cmemrchr_~n % 4294967296;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~s.base, cmemrchr_~s.offset + (if cmemrchr_~n % 4294967296 % 4294967296 <= 2147483647 then cmemrchr_~n % 4294967296 % 4294967296 else cmemrchr_~n % 4294967296 % 4294967296 - 4294967296); 12#L546-4true [2019-01-14 04:57:55,455 INFO L796 eck$LassoCheckResult]: Loop: 12#L546-4true cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset := cmemrchr_~cp~0.base, cmemrchr_~cp~0.offset - 1;call cmemrchr_#t~mem4 := read~int(cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset, 1); 3#L547true assume !(cmemrchr_#t~mem4 % 256 == cmemrchr_~c % 256);havoc cmemrchr_#t~mem4;havoc cmemrchr_#t~pre3.base, cmemrchr_#t~pre3.offset; 5#L546-1true cmemrchr_#t~pre2 := cmemrchr_~n - 1;cmemrchr_~n := cmemrchr_~n - 1; 8#L546-2true assume !!(0 != cmemrchr_#t~pre2 % 4294967296);havoc cmemrchr_#t~pre2; 12#L546-4true [2019-01-14 04:57:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:55,461 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-01-14 04:57:55,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:55,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:55,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:55,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:55,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2019-01-14 04:57:55,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:55,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:55,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:55,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:55,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2019-01-14 04:57:55,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:55,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:55,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:55,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:55,972 WARN L181 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-01-14 04:57:56,307 WARN L181 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-01-14 04:57:57,534 WARN L181 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-01-14 04:57:57,566 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:57:57,567 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:57:57,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:57:57,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:57:57,567 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 04:57:57,568 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:57:57,568 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:57:57,568 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:57:57,568 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2019-01-14 04:57:57,568 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:57:57,569 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:57:57,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:57,706 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-01-14 04:57:58,225 WARN L181 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-01-14 04:57:58,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:58,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:58,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:58,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:58,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:57:58,922 WARN L181 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-01-14 04:57:59,036 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-01-14 04:57:59,557 WARN L181 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-01-14 04:57:59,663 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2019-01-14 04:57:59,928 WARN L181 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-01-14 04:57:59,949 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:57:59,954 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 04:57:59,957 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 [2019-01-14 04:57:59,958 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,959 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,960 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,960 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,960 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,962 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,962 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,964 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,965 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 [2019-01-14 04:57:59,965 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,966 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,966 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,966 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,966 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,967 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,967 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,968 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,968 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 [2019-01-14 04:57:59,969 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,969 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,969 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,969 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,969 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,970 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,970 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,970 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,971 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 [2019-01-14 04:57:59,971 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,971 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,972 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,972 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,972 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,972 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,972 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,973 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,973 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 [2019-01-14 04:57:59,974 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,974 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,974 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,974 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,974 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,975 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,975 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,976 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,976 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 [2019-01-14 04:57:59,977 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,977 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,977 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,977 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,977 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,978 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,978 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,978 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,979 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 [2019-01-14 04:57:59,979 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,979 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,979 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,980 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,982 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,982 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,986 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,986 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 [2019-01-14 04:57:59,987 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,987 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,988 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,988 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,989 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,989 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 [2019-01-14 04:57:59,989 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,990 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,990 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,990 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,992 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,992 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,995 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,996 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 [2019-01-14 04:57:59,996 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,997 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,997 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,999 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,999 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 [2019-01-14 04:58:00,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:58:00,000 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-14 04:58:00,000 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:58:00,000 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:58:00,012 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-14 04:58:00,013 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:58:00,116 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 04:58:00,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 04:58:00,175 INFO L444 ModelExtractionUtils]: 31 out of 34 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 04:58:00,178 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 04:58:00,180 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-14 04:58:00,185 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 04:58:00,187 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemrchr_~cp~0.offset) = 1*ULTIMATE.start_cmemrchr_~cp~0.offset Supporting invariants [] [2019-01-14 04:58:00,250 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-01-14 04:58:00,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:58:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:58:00,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:58:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:58:00,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:58:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:58:00,549 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 [2019-01-14 04:58:00,550 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-01-14 04:58:00,638 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 40 transitions. Complement of second has 5 states. [2019-01-14 04:58:00,638 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 [2019-01-14 04:58:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 04:58:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-01-14 04:58:00,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 4 letters. [2019-01-14 04:58:00,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 10 letters. Loop has 4 letters. [2019-01-14 04:58:00,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 6 letters. Loop has 8 letters. [2019-01-14 04:58:00,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2019-01-14 04:58:00,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:58:00,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-01-14 04:58:00,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 04:58:00,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 04:58:00,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 04:58:00,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:58:00,654 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,654 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,655 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,655 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:58:00,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 04:58:00,655 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:58:00,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 04:58:00,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:58:00 BoogieIcfgContainer [2019-01-14 04:58:00,661 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:58:00,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:58:00,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:58:00,662 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:58:00,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:55" (3/4) ... [2019-01-14 04:58:00,666 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 04:58:00,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:58:00,667 INFO L168 Benchmark]: Toolchain (without parser) took 6455.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,668 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. [2019-01-14 04:58:00,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.62 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 925.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,671 INFO L168 Benchmark]: Boogie Preprocessor took 32.21 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. [2019-01-14 04:58:00,671 INFO L168 Benchmark]: RCFGBuilder took 444.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,672 INFO L168 Benchmark]: BuchiAutomizer took 5340.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,674 INFO L168 Benchmark]: Witness Printer took 4.51 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. [2019-01-14 04:58:00,681 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 500.62 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 925.9 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 128.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -206.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.21 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 444.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5340.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.51 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. * 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 cp and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 21 SDtfs, 21 SDslu, 8 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital244 mio100 ax100 hnf98 lsp84 ukn103 mio100 lsp67 div140 bol100 ite100 ukn100 eq167 hnf73 smp69 dnf243 smp56 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 185ms VariablesStem: 12 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...