./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/recursive_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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/ldv-regression/recursive_list.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 52c76a7df26fca079cfc43e405f2f619070583ff933a68f0bba20f0a9dce8e14 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:24:15,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:24:15,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:24:15,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:24:15,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:24:15,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:24:15,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:24:15,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:24:15,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:24:15,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:24:15,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:24:15,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:24:15,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:24:15,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:24:15,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:24:15,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:24:15,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:24:15,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:24:15,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:24:15,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:24:15,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:24:15,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:24:15,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:24:15,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:24:15,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:24:15,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:24:15,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:24:15,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:24:15,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:24:15,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:24:15,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:24:15,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:24:15,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:24:15,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:24:15,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:24:15,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:24:15,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:24:15,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:24:15,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:24:15,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:24:15,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:24:15,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:24:15,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:24:15,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:24:15,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:24:15,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:24:15,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:24:15,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:24:15,272 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:24:15,273 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:24:15,273 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:24:15,273 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:24:15,273 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:24:15,273 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:24:15,273 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:24:15,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:24:15,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:24:15,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:24:15,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:24:15,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:24:15,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:24:15,276 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:24:15,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:24:15,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:24:15,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:24:15,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:24:15,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:24:15,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:24:15,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:24:15,279 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:24:15,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52c76a7df26fca079cfc43e405f2f619070583ff933a68f0bba20f0a9dce8e14 [2021-12-14 23:24:15,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:24:15,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:24:15,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:24:15,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:24:15,477 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:24:15,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/recursive_list.i [2021-12-14 23:24:15,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d27d1fd4/7b2f398756ce4daa9fa8c3629042fad6/FLAG4fbb60fb8 [2021-12-14 23:24:15,907 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:24:15,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/recursive_list.i [2021-12-14 23:24:15,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d27d1fd4/7b2f398756ce4daa9fa8c3629042fad6/FLAG4fbb60fb8 [2021-12-14 23:24:16,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d27d1fd4/7b2f398756ce4daa9fa8c3629042fad6 [2021-12-14 23:24:16,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:24:16,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:24:16,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:24:16,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:24:16,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:24:16,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f174318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16, skipping insertion in model container [2021-12-14 23:24:16,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:24:16,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:24:16,583 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/ldv-regression/recursive_list.i[409,422] [2021-12-14 23:24:16,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:24:16,612 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:24:16,622 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/ldv-regression/recursive_list.i[409,422] [2021-12-14 23:24:16,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:24:16,639 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:24:16,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16 WrapperNode [2021-12-14 23:24:16,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:24:16,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:24:16,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:24:16,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:24:16,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,675 INFO L137 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 66 [2021-12-14 23:24:16,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:24:16,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:24:16,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:24:16,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:24:16,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:24:16,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:24:16,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:24:16,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:24:16,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (1/1) ... [2021-12-14 23:24:16,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:24:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:24:16,801 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) [2021-12-14 23:24:16,818 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 [2021-12-14 23:24:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 23:24:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:24:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:24:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 23:24:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 23:24:16,889 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:24:16,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:24:17,020 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:24:17,024 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:24:17,039 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 23:24:17,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:17 BoogieIcfgContainer [2021-12-14 23:24:17,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:24:17,042 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:24:17,042 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:24:17,045 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:24:17,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:24:17,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:24:16" (1/3) ... [2021-12-14 23:24:17,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4202604e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:24:17, skipping insertion in model container [2021-12-14 23:24:17,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:24:17,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:16" (2/3) ... [2021-12-14 23:24:17,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4202604e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:24:17, skipping insertion in model container [2021-12-14 23:24:17,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:24:17,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:17" (3/3) ... [2021-12-14 23:24:17,048 INFO L388 chiAutomizerObserver]: Analyzing ICFG recursive_list.i [2021-12-14 23:24:17,108 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:24:17,109 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:24:17,109 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:24:17,109 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:24:17,109 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:24:17,109 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:24:17,109 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:24:17,109 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:24:17,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-12-14 23:24:17,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:24:17,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:24:17,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:24:17 BoogieIcfgContainer [2021-12-14 23:24:17,141 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:24:17,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:24:17,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:24:17,145 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:24:17,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:17" (3/4) ... [2021-12-14 23:24:17,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:24:17,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:24:17,151 INFO L158 Benchmark]: Toolchain (without parser) took 793.66ms. Allocated memory is still 119.5MB. Free memory was 92.3MB in the beginning and 73.9MB in the end (delta: 18.5MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-12-14 23:24:17,152 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:24:17,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.06ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 94.3MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 23:24:17,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.24ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 92.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:24:17,155 INFO L158 Benchmark]: Boogie Preprocessor took 33.04ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:24:17,155 INFO L158 Benchmark]: RCFGBuilder took 331.18ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 79.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 23:24:17,156 INFO L158 Benchmark]: BuchiAutomizer took 98.99ms. Allocated memory is still 119.5MB. Free memory was 79.3MB in the beginning and 74.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 23:24:17,157 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 226.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:24:17,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 76.7MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.06ms. Allocated memory is still 119.5MB. Free memory was 92.1MB in the beginning and 94.3MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.24ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 92.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.04ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 91.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.18ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 79.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 98.99ms. Allocated memory is still 119.5MB. Free memory was 79.3MB in the beginning and 74.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 119.5MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 226.3kB). 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 Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: 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! [2021-12-14 23:24:17,197 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