./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cstpcpy-alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cstpcpy-alloca_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:21:11,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:21:11,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:21:11,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:21:11,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:21:11,074 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:21:11,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:21:11,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:21:11,079 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:21:11,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:21:11,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:21:11,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:21:11,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:21:11,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:21:11,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:21:11,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:21:11,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:21:11,090 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:21:11,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:21:11,094 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:21:11,096 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:21:11,097 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:21:11,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:21:11,101 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:21:11,101 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:21:11,102 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:21:11,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:21:11,105 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:21:11,106 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:21:11,108 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:21:11,108 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:21:11,109 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:21:11,109 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:21:11,109 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:21:11,111 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:21:11,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:21:11,113 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:21:11,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:21:11,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:21:11,131 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:21:11,131 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:21:11,131 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:21:11,131 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:21:11,132 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:21:11,132 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:21:11,133 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:21:11,133 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:21:11,133 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:21:11,133 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:21:11,133 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:21:11,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:21:11,135 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:21:11,136 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:21:11,136 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:21:11,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:21:11,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:21:11,136 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:21:11,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:21:11,138 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:21:11,138 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:21:11,139 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:21:11,140 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001582003a9a42d7c73bfe1e3e6fff242f9ddf73 [2018-11-28 23:21:11,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:21:11,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:21:11,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:21:11,197 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:21:11,198 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:21:11,199 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cstpcpy-alloca_true-termination.c.i [2018-11-28 23:21:11,269 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cad53759/2e4f03f3f61746e09833649fdc583d83/FLAG2c95ab313 [2018-11-28 23:21:11,833 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:21:11,834 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-memory-alloca/openbsd_cstpcpy-alloca_true-termination.c.i [2018-11-28 23:21:11,854 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cad53759/2e4f03f3f61746e09833649fdc583d83/FLAG2c95ab313 [2018-11-28 23:21:12,110 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cad53759/2e4f03f3f61746e09833649fdc583d83 [2018-11-28 23:21:12,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:21:12,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:21:12,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:21:12,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:21:12,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:21:12,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a9fa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12, skipping insertion in model container [2018-11-28 23:21:12,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:21:12,186 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:21:12,615 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:21:12,641 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:21:12,708 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:21:12,867 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:21:12,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12 WrapperNode [2018-11-28 23:21:12,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:21:12,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:21:12,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:21:12,869 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:21:12,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:21:12,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:21:12,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:21:12,926 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:21:12,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (1/1) ... [2018-11-28 23:21:12,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:21:12,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:21:12,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:21:12,967 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:21:12,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (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 [2018-11-28 23:21:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:21:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:21:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:21:13,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:21:13,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:21:13,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:21:13,407 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:21:13,408 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 23:21:13,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:13 BoogieIcfgContainer [2018-11-28 23:21:13,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:21:13,409 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:21:13,409 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:21:13,413 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:21:13,414 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:13,414 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:21:12" (1/3) ... [2018-11-28 23:21:13,415 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40cbc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:21:13, skipping insertion in model container [2018-11-28 23:21:13,416 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:13,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:21:12" (2/3) ... [2018-11-28 23:21:13,416 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40cbc450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:21:13, skipping insertion in model container [2018-11-28 23:21:13,416 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:21:13,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:13" (3/3) ... [2018-11-28 23:21:13,421 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-termination.c.i [2018-11-28 23:21:13,482 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:21:13,482 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:21:13,483 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:21:13,483 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:21:13,483 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:21:13,483 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:21:13,483 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:21:13,483 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:21:13,484 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:21:13,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-28 23:21:13,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:21:13,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:21:13,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:21:13,530 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:21:13,531 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:21:13,531 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:21:13,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-28 23:21:13,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:21:13,533 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:21:13,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:21:13,533 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:21:13,533 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:21:13,542 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 8#L555true assume !(main_~length1~0 < 1); 11#L555-2true assume !(main_~length2~0 < 1); 4#L558-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.alloc(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstpcpy_#in~to.base, cstpcpy_#in~to.offset, cstpcpy_#in~from.base, cstpcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstpcpy_#res.base, cstpcpy_#res.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset, cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset, cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, cstpcpy_~from.base, cstpcpy_~from.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_#in~to.base, cstpcpy_#in~to.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_#in~from.base, cstpcpy_#in~from.offset; 6#L549-4true [2018-11-28 23:21:13,543 INFO L796 eck$LassoCheckResult]: Loop: 6#L549-4true call cstpcpy_#t~mem4 := read~int(cstpcpy_~from.base, cstpcpy_~from.offset, 1);call write~int(cstpcpy_#t~mem4, cstpcpy_~to.base, cstpcpy_~to.offset, 1); 3#L549-1true assume !!(0 != cstpcpy_#t~mem4);havoc cstpcpy_#t~mem4; 5#L549-3true cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;cstpcpy_~from.base, cstpcpy_~from.offset := cstpcpy_~from.base, 1 + cstpcpy_~from.offset;havoc cstpcpy_#t~pre2.base, cstpcpy_#t~pre2.offset;cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;cstpcpy_~to.base, cstpcpy_~to.offset := cstpcpy_~to.base, 1 + cstpcpy_~to.offset;havoc cstpcpy_#t~pre3.base, cstpcpy_#t~pre3.offset; 6#L549-4true [2018-11-28 23:21:13,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2018-11-28 23:21:13,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:13,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:13,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:13,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:13,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:13,715 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2018-11-28 23:21:13,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:13,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:13,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:13,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:13,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2018-11-28 23:21:13,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:21:13,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:21:13,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:21:13,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:21:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:21:14,005 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-11-28 23:21:14,246 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-11-28 23:21:14,786 WARN L180 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-11-28 23:21:15,261 WARN L180 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-11-28 23:21:15,286 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:21:15,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:21:15,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:21:15,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:21:15,288 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:21:15,288 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:21:15,288 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:21:15,288 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:21:15,288 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca_true-termination.c.i_Iteration1_Lasso [2018-11-28 23:21:15,288 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:21:15,289 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:21:15,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:15,799 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2018-11-28 23:21:16,048 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2018-11-28 23:21:16,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:16,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:21:17,013 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:21:17,020 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:21:17,023 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,026 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,026 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,028 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,031 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,031 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,035 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,036 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,036 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,036 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,036 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,037 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,037 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,037 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,038 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,039 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,039 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,039 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,040 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,040 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,040 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,040 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,041 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,041 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,042 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,042 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,043 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,043 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,044 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,044 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,045 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,045 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,046 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,046 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,046 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,046 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,046 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,047 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,047 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,048 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,048 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,048 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,049 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,049 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,049 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,052 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:17,052 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:17,056 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,056 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,057 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:21:17,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,057 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,057 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,058 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:21:17,058 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:21:17,059 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,060 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,060 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,060 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,061 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,063 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:17,063 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:17,068 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:21:17,069 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:21:17,070 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:21:17,070 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:21:17,070 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:21:17,070 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:21:17,085 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:21:17,087 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:21:17,233 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:21:17,297 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-28 23:21:17,298 INFO L444 ModelExtractionUtils]: 37 out of 43 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:21:17,301 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:21:17,303 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 23:21:17,305 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:21:17,306 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1, ULTIMATE.start_cstpcpy_~to.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7.base)_1 - 1*ULTIMATE.start_cstpcpy_~to.offset Supporting invariants [] [2018-11-28 23:21:17,500 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2018-11-28 23:21:17,510 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 23:21:17,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:21:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:21:17,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:21:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:21:17,588 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:21:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:21:17,630 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 [2018-11-28 23:21:17,632 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2018-11-28 23:21:17,734 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2018-11-28 23:21:17,735 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 [2018-11-28 23:21:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:21:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 23:21:17,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 23:21:17,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:17,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-28 23:21:17,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:17,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-28 23:21:17,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:21:17,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2018-11-28 23:21:17,745 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:21:17,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2018-11-28 23:21:17,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:21:17,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:21:17,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:21:17,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:21:17,750 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:17,750 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:17,751 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:21:17,751 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:21:17,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:21:17,751 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:21:17,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:21:17,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:21:17 BoogieIcfgContainer [2018-11-28 23:21:17,758 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:21:17,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:21:17,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:21:17,759 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:21:17,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:21:13" (3/4) ... [2018-11-28 23:21:17,763 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:21:17,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:21:17,764 INFO L168 Benchmark]: Toolchain (without parser) took 5649.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.7 MB in the beginning and 777.4 MB in the end (delta: 175.3 MB). Peak memory consumption was 276.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:17,765 INFO L168 Benchmark]: CDTParser took 0.49 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. [2018-11-28 23:21:17,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:17,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:17,768 INFO L168 Benchmark]: Boogie Preprocessor took 40.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:21:17,769 INFO L168 Benchmark]: RCFGBuilder took 442.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:17,769 INFO L168 Benchmark]: BuchiAutomizer took 4348.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 777.4 MB in the end (delta: 290.6 MB). Peak memory consumption was 290.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:21:17,770 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 1.1 GB. Free memory is still 777.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:21:17,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 751.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 442.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4348.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 777.4 MB in the end (delta: 290.6 MB). Peak memory consumption was 290.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.08 ms. Allocated memory is still 1.1 GB. Free memory is still 777.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * to and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 16 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax109 hnf99 lsp88 ukn90 mio100 lsp47 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...