./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/sendmail-close-angle.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 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:29:45,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:29:45,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:29:45,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:29:45,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:29:45,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:29:45,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:29:45,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:29:45,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:29:45,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:29:45,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:29:45,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:29:45,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:29:45,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:29:45,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:29:45,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:29:45,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:29:45,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:29:45,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:29:45,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:29:45,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:29:45,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:29:45,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:29:45,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:29:45,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:29:45,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:29:45,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:29:45,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:29:45,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:29:45,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:29:45,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:29:45,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:29:45,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:29:45,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:29:45,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:29:45,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:29:45,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:29:45,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:29:45,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:29:45,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:29:45,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:29:45,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:29:45,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:29:45,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:29:45,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:29:45,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:29:45,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:29:45,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:29:45,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:29:45,954 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:29:45,954 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:29:45,954 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:29:45,955 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:29:45,955 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:29:45,955 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:29:45,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:29:45,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:29:45,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:29:45,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:29:45,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:29:45,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:29:45,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:29:45,959 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:29:45,959 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 [2021-12-28 09:29:46,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:29:46,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:29:46,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:29:46,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:29:46,226 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:29:46,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-12-28 09:29:46,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029747f3c/ca790918d1b24ca5ae55fdd71a891c81/FLAG7b6c6588b [2021-12-28 09:29:46,766 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:29:46,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-12-28 09:29:46,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029747f3c/ca790918d1b24ca5ae55fdd71a891c81/FLAG7b6c6588b [2021-12-28 09:29:47,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/029747f3c/ca790918d1b24ca5ae55fdd71a891c81 [2021-12-28 09:29:47,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:29:47,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:29:47,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:29:47,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:29:47,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:29:47,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14838deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47, skipping insertion in model container [2021-12-28 09:29:47,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:29:47,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:29:47,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-12-28 09:29:47,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:29:47,255 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:29:47,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-12-28 09:29:47,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:29:47,305 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:29:47,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47 WrapperNode [2021-12-28 09:29:47,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:29:47,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:29:47,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:29:47,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:29:47,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,327 INFO L137 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 105 [2021-12-28 09:29:47,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:29:47,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:29:47,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:29:47,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:29:47,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:29:47,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:29:47,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:29:47,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:29:47,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (1/1) ... [2021-12-28 09:29:47,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:47,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:29:47,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:29:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:29:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:29:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:29:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:29:47,477 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:29:47,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:29:47,627 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:29:47,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:29:47,644 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:29:47,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:47 BoogieIcfgContainer [2021-12-28 09:29:47,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:29:47,646 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:29:47,646 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:29:47,648 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:29:47,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:47,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:29:47" (1/3) ... [2021-12-28 09:29:47,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f294a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:29:47, skipping insertion in model container [2021-12-28 09:29:47,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:47,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:47" (2/3) ... [2021-12-28 09:29:47,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f294a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:29:47, skipping insertion in model container [2021-12-28 09:29:47,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:47,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:47" (3/3) ... [2021-12-28 09:29:47,651 INFO L388 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2021-12-28 09:29:47,725 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:29:47,725 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:29:47,725 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:29:47,726 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:29:47,726 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:29:47,726 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:29:47,726 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:29:47,726 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:29:47,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:29:47,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-12-28 09:29:47,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:29:47,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:29:47,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:29:47,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:29:47,761 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:29:47,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:29:47,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-12-28 09:29:47,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:29:47,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:29:47,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:29:47,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:29:47,771 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post4#1, main_#t~post5#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post7#1, main_~in~0#1, main_~inlen~0#1, main_~bufferlen~0#1, main_~buf~0#1, main_~buflim~0#1;havoc main_~in~0#1;main_~inlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~bufferlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_~buf~0#1;havoc main_~buflim~0#1; 8#L31true assume main_~bufferlen~0#1 > 1; 36#L31-1true assume main_~inlen~0#1 > 0; 25#L32true assume main_~bufferlen~0#1 < main_~inlen~0#1; 24#L33true main_~buf~0#1 := 0;main_~in~0#1 := 0;main_~buflim~0#1 := main_~bufferlen~0#1 - 2; 20#L37-2true [2021-12-28 09:29:47,772 INFO L793 eck$LassoCheckResult]: Loop: 20#L37-2true assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; 18#L39true assume !(main_~buf~0#1 == main_~buflim~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~buf~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 31#L18true assume !(0 == __VERIFIER_assert_~cond#1); 15#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~buf~0#1 < main_~bufferlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 5#L18-5true assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~buf~0#1;main_~buf~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6#L44true main_#t~post5#1 := main_~in~0#1;main_~in~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~in~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 11#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~in~0#1 < main_~inlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 29#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 32#L18-11true assume { :end_inline___VERIFIER_assert } true; 20#L37-2true [2021-12-28 09:29:47,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2021-12-28 09:29:47,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:47,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576305219] [2021-12-28 09:29:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:47,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:47,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:47,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:47,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:47,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1774709709, now seen corresponding path program 1 times [2021-12-28 09:29:47,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:47,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213008207] [2021-12-28 09:29:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:47,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:47,942 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:47,976 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 72534311, now seen corresponding path program 1 times [2021-12-28 09:29:47,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250428040] [2021-12-28 09:29:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:47,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:48,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:48,249 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:29:48,249 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:29:48,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:29:48,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:29:48,250 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:29:48,250 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,250 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:29:48,250 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:29:48,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2021-12-28 09:29:48,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:29:48,251 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:29:48,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,349 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:29:48,349 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:29:48,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:48,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:29:48,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:29:48,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:48,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-28 09:29:48,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-28 09:29:48,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:48,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:29:48,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-28 09:29:48,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:29:48,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:48,567 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:29:48,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-28 09:29:48,572 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:29:48,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:29:48,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:29:48,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:29:48,573 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:29:48,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:29:48,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:29:48,573 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2021-12-28 09:29:48,573 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:29:48,573 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:29:48,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:48,662 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:29:48,666 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:29:48,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:48,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:29:48,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-28 09:29:48,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:29:48,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:29:48,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:29:48,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:29:48,709 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-28 09:29:48,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:29:48,712 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-28 09:29:48,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:29:48,730 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:29:48,736 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-28 09:29:48,737 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-28 09:29:48,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:48,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:48,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:29:48,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-28 09:29:48,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:29:48,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:29:48,743 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:29:48,743 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~bufferlen~0#1, ULTIMATE.start_main_~buf~0#1) = 1*ULTIMATE.start_main_~bufferlen~0#1 - 1*ULTIMATE.start_main_~buf~0#1 Supporting invariants [] [2021-12-28 09:29:48,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-28 09:29:48,762 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:29:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:29:48,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 09:29:48,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:29:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:29:48,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 09:29:48,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:29:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:29:48,962 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:29:48,963 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:29:49,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 106 states and 134 transitions. Complement of second has 9 states. [2021-12-28 09:29:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:29:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:29:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2021-12-28 09:29:49,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 11 letters. [2021-12-28 09:29:49,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:49,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 17 letters. Loop has 11 letters. [2021-12-28 09:29:49,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:49,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 22 letters. [2021-12-28 09:29:49,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:49,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 134 transitions. [2021-12-28 09:29:49,061 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:29:49,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 0 states and 0 transitions. [2021-12-28 09:29:49,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:29:49,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:29:49,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:29:49,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:29:49,064 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:49,064 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:49,064 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:49,064 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:29:49,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:29:49,064 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:29:49,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:29:49,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:29:49 BoogieIcfgContainer [2021-12-28 09:29:49,069 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:29:49,069 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:29:49,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:29:49,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:29:49,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:47" (3/4) ... [2021-12-28 09:29:49,072 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:29:49,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:29:49,073 INFO L158 Benchmark]: Toolchain (without parser) took 1966.75ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 38.2MB in the beginning and 27.9MB in the end (delta: 10.3MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-12-28 09:29:49,073 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 41.6MB in the end (delta: 51.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:49,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.72ms. Allocated memory is still 58.7MB. Free memory was 38.0MB in the beginning and 42.3MB in the end (delta: -4.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:29:49,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.67ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:29:49,074 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 39.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:49,075 INFO L158 Benchmark]: RCFGBuilder took 284.21ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 29.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 09:29:49,075 INFO L158 Benchmark]: BuchiAutomizer took 1423.29ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 28.4MB in the end (delta: 840.6kB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-12-28 09:29:49,075 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 71.3MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:49,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 41.6MB in the end (delta: 51.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.72ms. Allocated memory is still 58.7MB. Free memory was 38.0MB in the beginning and 42.3MB in the end (delta: -4.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.67ms. Allocated memory is still 58.7MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 39.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.21ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 29.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1423.29ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 29.2MB in the beginning and 28.4MB in the end (delta: 840.6kB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 71.3MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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 bufferlen + -1 * buf and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 76ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-28 09:29:49,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-28 09:29:49,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE