./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-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_cmemset-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 8df11a05aa3b89e8b7aa4c528df2e0718843a0ef .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:57:54,233 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:57:54,235 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:57:54,247 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:57:54,247 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:57:54,249 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:57:54,250 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:57:54,252 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:57:54,254 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:57:54,255 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:57:54,256 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:57:54,256 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:57:54,258 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:57:54,258 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:57:54,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:57:54,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:57:54,262 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:57:54,264 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:57:54,266 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:57:54,268 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:57:54,269 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:57:54,270 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:57:54,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:57:54,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:57:54,274 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:57:54,275 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:57:54,276 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:57:54,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:57:54,279 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:57:54,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:57:54,280 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:57:54,281 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:57:54,281 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:57:54,282 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:57:54,283 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:57:54,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:57:54,284 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:57:54,312 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:57:54,313 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:57:54,315 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:57:54,315 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:57:54,315 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:57:54,315 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:57:54,315 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:57:54,316 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:57:54,317 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:57:54,317 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:57:54,318 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:57:54,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:57:54,318 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:57:54,318 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:57:54,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:57:54,319 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:57:54,320 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:57:54,321 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:57:54,323 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:57:54,323 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:57:54,323 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:57:54,324 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:57:54,324 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:57:54,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:57:54,325 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:57:54,325 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:57:54,330 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:57:54,330 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 -> 8df11a05aa3b89e8b7aa4c528df2e0718843a0ef [2019-01-14 04:57:54,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:57:54,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:57:54,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:57:54,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:57:54,411 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:57:54,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:54,465 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c9f6a25/981b7c8b84b04dec822d8bd7863a4349/FLAG6e27044db [2019-01-14 04:57:54,938 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:57:54,939 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:54,952 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c9f6a25/981b7c8b84b04dec822d8bd7863a4349/FLAG6e27044db [2019-01-14 04:57:55,270 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c9f6a25/981b7c8b84b04dec822d8bd7863a4349 [2019-01-14 04:57:55,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:57:55,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:57:55,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:57:55,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:57:55,280 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:57:55,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:55,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e34980e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55, skipping insertion in model container [2019-01-14 04:57:55,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:55,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:57:55,341 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:57:55,714 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:57:55,732 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:57:55,881 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:57:55,954 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:57:55,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55 WrapperNode [2019-01-14 04:57:55,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:57:55,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:57:55,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:57:55,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:57:55,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:55,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:57:56,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:57:56,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:57:56,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:57:56,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (1/1) ... [2019-01-14 04:57:56,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:57:56,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:57:56,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:57:56,035 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:57:56,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (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 04:57:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 04:57:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 04:57:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 04:57:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:57:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:57:56,418 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:57:56,419 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 04:57:56,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:56 BoogieIcfgContainer [2019-01-14 04:57:56,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:57:56,421 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:57:56,421 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:57:56,425 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:57:56,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:56,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:57:55" (1/3) ... [2019-01-14 04:57:56,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d112b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:57:56, skipping insertion in model container [2019-01-14 04:57:56,427 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:56,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:57:55" (2/3) ... [2019-01-14 04:57:56,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d112b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:57:56, skipping insertion in model container [2019-01-14 04:57:56,428 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:57:56,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:56" (3/3) ... [2019-01-14 04:57:56,431 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2019-01-14 04:57:56,488 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:57:56,488 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:57:56,488 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:57:56,489 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:57:56,489 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:57:56,489 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:57:56,489 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:57:56,489 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:57:56,489 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:57:56,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:57:56,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:57:56,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:57:56,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:57:56,532 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:57:56,532 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:57:56,533 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:57:56,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:57:56,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:57:56,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:57:56,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:57:56,536 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:57:56,536 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:57:56,545 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~ret8.base, main_#t~ret8.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~n~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~c~0 := main_#t~nondet6;havoc main_#t~nondet6; 4#L555true assume !(main_~length~0 < 1); 9#L555-2true assume !(main_~n~0 < 1); 3#L558-1true call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;cmemset_#in~dst.base, cmemset_#in~dst.offset, cmemset_#in~c, cmemset_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemset_#res.base, cmemset_#res.offset;havoc cmemset_#t~post3.base, cmemset_#t~post3.offset, cmemset_#t~pre2, cmemset_~d~0.base, cmemset_~d~0.offset, cmemset_~dst.base, cmemset_~dst.offset, cmemset_~c, cmemset_~n;cmemset_~dst.base, cmemset_~dst.offset := cmemset_#in~dst.base, cmemset_#in~dst.offset;cmemset_~c := cmemset_#in~c;cmemset_~n := cmemset_#in~n; 6#L543true assume 0 != cmemset_~n % 4294967296;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_~dst.base, cmemset_~dst.offset; 13#L545-4true [2019-01-14 04:57:56,545 INFO L796 eck$LassoCheckResult]: Loop: 13#L545-4true cmemset_#t~post3.base, cmemset_#t~post3.offset := cmemset_~d~0.base, cmemset_~d~0.offset;cmemset_~d~0.base, cmemset_~d~0.offset := cmemset_#t~post3.base, 1 + cmemset_#t~post3.offset;call write~int(cmemset_~c, cmemset_#t~post3.base, cmemset_#t~post3.offset, 1);havoc cmemset_#t~post3.base, cmemset_#t~post3.offset; 5#L545-1true cmemset_#t~pre2 := cmemset_~n - 1;cmemset_~n := cmemset_~n - 1; 7#L545-2true assume !!(0 != cmemset_#t~pre2 % 4294967296);havoc cmemset_#t~pre2; 13#L545-4true [2019-01-14 04:57:56,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:56,554 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-01-14 04:57:56,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:56,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:56,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:56,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:56,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:56,692 INFO L82 PathProgramCache]: Analyzing trace with hash 51706, now seen corresponding path program 1 times [2019-01-14 04:57:56,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:56,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:56,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:56,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:56,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1298288271, now seen corresponding path program 1 times [2019-01-14 04:57:56,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:57:56,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:57:56,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:57:56,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:57:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:57:57,308 WARN L181 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-01-14 04:57:57,550 WARN L181 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-01-14 04:57:57,572 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:57:57,573 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:57:57,573 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:57:57,573 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:57:57,573 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 04:57:57,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:57:57,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:57:57,574 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:57:57,574 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2019-01-14 04:57:57,574 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:57:57,575 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:57:57,603 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 04:57:58,202 WARN L181 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-01-14 04:57:58,355 WARN L181 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [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 04:57:58,359 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 04:57:58,362 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 04:57:58,366 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 04:57:58,368 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 04:57:58,371 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 04:57:58,376 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 04:57:58,380 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 04:57:58,383 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 04:57:58,389 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 04:57:58,395 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 04:57:58,398 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 04:57:58,401 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 04:57:58,939 WARN L181 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-01-14 04:57:59,070 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-01-14 04:57:59,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:57:59,393 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 04:57:59,395 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 04:57:59,396 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,396 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,397 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,397 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,397 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,399 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,399 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,401 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,402 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 04:57:59,402 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,403 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,403 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,403 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,407 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,407 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,414 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,414 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 04:57:59,415 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,415 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:57:59,415 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,416 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:57:59,417 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:57:59,418 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,418 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 04:57:59,419 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,419 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-14 04:57:59,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,420 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,425 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-14 04:57:59,426 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,456 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,457 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 04:57:59,458 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,458 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,458 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,458 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,463 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,479 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,480 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 04:57:59,481 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,481 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,481 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,481 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,483 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,484 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,487 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:57:59,487 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 04:57:59,488 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:57:59,488 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:57:59,489 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:57:59,489 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:57:59,497 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 04:57:59,497 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 04:57:59,641 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 04:57:59,688 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-14 04:57:59,689 INFO L444 ModelExtractionUtils]: 29 out of 34 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-01-14 04:57:59,691 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 04:57:59,693 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-14 04:57:59,693 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 04:57:59,694 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cmemset_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1) = -1*ULTIMATE.start_cmemset_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 Supporting invariants [] [2019-01-14 04:57:59,773 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-01-14 04:57:59,806 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-14 04:57:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:57:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:57:59,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:58:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:58:00,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:58:00,073 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 04:58:00,086 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-01-14 04:58:00,087 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2019-01-14 04:58:00,174 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 29 states and 32 transitions. Complement of second has 7 states. [2019-01-14 04:58:00,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 04:58:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-14 04:58:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-01-14 04:58:00,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2019-01-14 04:58:00,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2019-01-14 04:58:00,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2019-01-14 04:58:00,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:58:00,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 32 transitions. [2019-01-14 04:58:00,184 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:58:00,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-01-14 04:58:00,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 04:58:00,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 04:58:00,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 04:58:00,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:58:00,189 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,189 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,189 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:58:00,189 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:58:00,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 04:58:00,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:58:00,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 04:58:00,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:58:00 BoogieIcfgContainer [2019-01-14 04:58:00,195 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:58:00,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:58:00,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:58:00,196 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:58:00,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:57:56" (3/4) ... [2019-01-14 04:58:00,200 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 04:58:00,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:58:00,201 INFO L168 Benchmark]: Toolchain (without parser) took 4926.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 873.6 MB in the end (delta: 77.7 MB). Peak memory consumption was 221.9 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,202 INFO L168 Benchmark]: CDTParser took 0.15 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 04:58:00,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.39 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 04:58:00,204 INFO L168 Benchmark]: Boogie Preprocessor took 28.77 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 04:58:00,204 INFO L168 Benchmark]: RCFGBuilder took 385.67 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,205 INFO L168 Benchmark]: BuchiAutomizer took 3774.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.6 MB in the end (delta: 231.1 MB). Peak memory consumption was 231.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:58:00,206 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 1.2 GB. Free memory is still 873.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:58:00,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 679.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.39 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 28.77 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 385.67 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3774.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.6 MB in the end (delta: 231.1 MB). Peak memory consumption was 231.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.08 ms. Allocated memory is still 1.2 GB. Free memory is still 873.6 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 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. 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: 14 SDtfs, 14 SDslu, 11 SDs, 0 SdLazy, 9 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital138 mio100 ax100 hnf98 lsp93 ukn93 mio100 lsp58 div214 bol100 ite100 ukn100 eq166 hnf63 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 6 VariablesLoop: 3 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...