./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/alias_of_return.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/alias_of_return.c_1.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 6f71655fe0f361042492ef6da3c65276d89593e2bdc02b8a58d0453a84c81565 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:15:46,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:15:46,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:15:46,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:15:46,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:15:46,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:15:46,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:15:46,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:15:46,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:15:46,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:15:46,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:15:46,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:15:46,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:15:46,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:15:46,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:15:46,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:15:46,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:15:46,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:15:46,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:15:46,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:15:46,153 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:15:46,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:15:46,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:15:46,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:15:46,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:15:46,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:15:46,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:15:46,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:15:46,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:15:46,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:15:46,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:15:46,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:15:46,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:15:46,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:15:46,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:15:46,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:15:46,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:15:46,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:15:46,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:15:46,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:15:46,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:15:46,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:15:46,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:15:46,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:15:46,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:15:46,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:15:46,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:15:46,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:15:46,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:15:46,202 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:15:46,203 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:15:46,203 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:15:46,203 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:15:46,204 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:15:46,204 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:15:46,204 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:15:46,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:15:46,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:15:46,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:15:46,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:15:46,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:15:46,206 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:15:46,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:15:46,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:15:46,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:15:46,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:15:46,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:15:46,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:15:46,209 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:15:46,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f71655fe0f361042492ef6da3c65276d89593e2bdc02b8a58d0453a84c81565 [2022-07-22 02:15:46,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:15:46,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:15:46,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:15:46,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:15:46,510 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:15:46,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/alias_of_return.c_1.i [2022-07-22 02:15:46,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64844a8e/0873b68789e04d1c914fc0a0a53d0b03/FLAG33364d846 [2022-07-22 02:15:46,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:15:46,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/alias_of_return.c_1.i [2022-07-22 02:15:46,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64844a8e/0873b68789e04d1c914fc0a0a53d0b03/FLAG33364d846 [2022-07-22 02:15:47,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d64844a8e/0873b68789e04d1c914fc0a0a53d0b03 [2022-07-22 02:15:47,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:15:47,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:15:47,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:15:47,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:15:47,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:15:47,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cd66dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47, skipping insertion in model container [2022-07-22 02:15:47,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:15:47,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:15:47,507 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/alias_of_return.c_1.i[300,313] [2022-07-22 02:15:47,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:15:47,525 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:15:47,535 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/alias_of_return.c_1.i[300,313] [2022-07-22 02:15:47,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:15:47,581 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:15:47,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47 WrapperNode [2022-07-22 02:15:47,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:15:47,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:15:47,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:15:47,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:15:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,610 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2022-07-22 02:15:47,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:15:47,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:15:47,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:15:47,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:15:47,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:15:47,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:15:47,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:15:47,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:15:47,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (1/1) ... [2022-07-22 02:15:47,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:15:47,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:15:47,685 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) [2022-07-22 02:15:47,704 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 [2022-07-22 02:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 02:15:47,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 02:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:15:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 02:15:47,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 02:15:47,770 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:15:47,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:15:47,881 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:15:47,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:15:47,885 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 02:15:47,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:47 BoogieIcfgContainer [2022-07-22 02:15:47,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:15:47,888 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:15:47,888 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:15:47,890 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:15:47,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:47,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:15:47" (1/3) ... [2022-07-22 02:15:47,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aefee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:15:47, skipping insertion in model container [2022-07-22 02:15:47,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:47,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:15:47" (2/3) ... [2022-07-22 02:15:47,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aefee7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:15:47, skipping insertion in model container [2022-07-22 02:15:47,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:15:47,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:47" (3/3) ... [2022-07-22 02:15:47,892 INFO L354 chiAutomizerObserver]: Analyzing ICFG alias_of_return.c_1.i [2022-07-22 02:15:47,939 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:15:47,940 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:15:47,940 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:15:47,940 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:15:47,940 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:15:47,940 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:15:47,940 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:15:47,941 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:15:47,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-07-22 02:15:47,959 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:15:47,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:15:47,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:15:47 BoogieIcfgContainer [2022-07-22 02:15:47,962 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:15:47,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:15:47,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:15:47,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:15:47,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:15:47" (3/4) ... [2022-07-22 02:15:47,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:15:47,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:15:47,967 INFO L158 Benchmark]: Toolchain (without parser) took 562.46ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.4MB in the beginning and 36.6MB in the end (delta: -7.3MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,967 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory was 33.2MB in the beginning and 33.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:15:47,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.98ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.2MB in the beginning and 53.0MB in the end (delta: -23.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.28ms. Allocated memory is still 69.2MB. Free memory was 53.0MB in the beginning and 51.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:15:47,968 INFO L158 Benchmark]: Boogie Preprocessor took 29.75ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 50.8MB in the end (delta: 847.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,969 INFO L158 Benchmark]: RCFGBuilder took 245.84ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 42.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,969 INFO L158 Benchmark]: BuchiAutomizer took 74.41ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 37.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,970 INFO L158 Benchmark]: Witness Printer took 2.54ms. Allocated memory is still 69.2MB. Free memory was 37.0MB in the beginning and 36.6MB in the end (delta: 375.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:15:47,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory was 33.2MB in the beginning and 33.1MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.98ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.2MB in the beginning and 53.0MB in the end (delta: -23.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.28ms. Allocated memory is still 69.2MB. Free memory was 53.0MB in the beginning and 51.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.75ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 50.8MB in the end (delta: 847.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.84ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 42.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 74.41ms. Allocated memory is still 69.2MB. Free memory was 42.2MB in the beginning and 37.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 2.54ms. Allocated memory is still 69.2MB. Free memory was 37.0MB in the beginning and 36.6MB in the end (delta: 375.2kB). Peak memory consumption was 2.1MB. 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:15:48,023 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