./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/sum_2x3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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/recursive-simple/sum_2x3-2.c -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 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 04:21:28,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 04:21:28,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 04:21:28,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 04:21:28,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 04:21:28,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 04:21:28,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 04:21:28,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 04:21:28,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 04:21:28,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 04:21:28,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 04:21:28,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 04:21:28,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 04:21:28,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 04:21:28,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 04:21:28,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 04:21:28,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 04:21:28,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 04:21:28,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 04:21:28,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 04:21:28,756 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 04:21:28,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 04:21:28,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 04:21:28,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 04:21:28,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 04:21:28,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 04:21:28,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 04:21:28,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 04:21:28,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 04:21:28,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 04:21:28,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 04:21:28,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 04:21:28,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 04:21:28,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 04:21:28,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 04:21:28,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 04:21:28,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 04:21:28,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 04:21:28,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 04:21:28,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 04:21:28,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 04:21:28,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 04:21:28,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 04:21:28,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 04:21:28,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 04:21:28,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 04:21:28,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 04:21:28,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 04:21:28,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 04:21:28,814 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 04:21:28,814 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 04:21:28,814 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 04:21:28,814 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 04:21:28,814 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 04:21:28,815 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 04:21:28,815 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 04:21:28,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 04:21:28,815 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 04:21:28,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 04:21:28,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 04:21:28,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 04:21:28,817 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 04:21:28,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 04:21:28,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 04:21:28,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 04:21:28,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 04:21:28,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 04:21:28,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 04:21:28,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 04:21:28,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f [2022-07-13 04:21:29,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 04:21:29,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 04:21:29,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 04:21:29,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 04:21:29,025 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 04:21:29,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2022-07-13 04:21:29,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d714097d/3cb185221ccc4f45b9805f7fe426f555/FLAGfbe15db32 [2022-07-13 04:21:29,447 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 04:21:29,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2022-07-13 04:21:29,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d714097d/3cb185221ccc4f45b9805f7fe426f555/FLAGfbe15db32 [2022-07-13 04:21:29,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d714097d/3cb185221ccc4f45b9805f7fe426f555 [2022-07-13 04:21:29,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 04:21:29,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 04:21:29,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 04:21:29,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 04:21:29,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 04:21:29,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ab25fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29, skipping insertion in model container [2022-07-13 04:21:29,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 04:21:29,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 04:21:29,627 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/recursive-simple/sum_2x3-2.c[479,492] [2022-07-13 04:21:29,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:21:29,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 04:21:29,652 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/recursive-simple/sum_2x3-2.c[479,492] [2022-07-13 04:21:29,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:21:29,665 INFO L208 MainTranslator]: Completed translation [2022-07-13 04:21:29,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29 WrapperNode [2022-07-13 04:21:29,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 04:21:29,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 04:21:29,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 04:21:29,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 04:21:29,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,688 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-07-13 04:21:29,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 04:21:29,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 04:21:29,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 04:21:29,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 04:21:29,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 04:21:29,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 04:21:29,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 04:21:29,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 04:21:29,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (1/1) ... [2022-07-13 04:21:29,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:29,736 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) [2022-07-13 04:21:29,742 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 [2022-07-13 04:21:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 04:21:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 04:21:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 04:21:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-07-13 04:21:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-07-13 04:21:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 04:21:29,806 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 04:21:29,807 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 04:21:29,868 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 04:21:29,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 04:21:29,872 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 04:21:29,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:21:29 BoogieIcfgContainer [2022-07-13 04:21:29,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 04:21:29,874 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 04:21:29,874 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 04:21:29,877 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 04:21:29,877 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:21:29,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 04:21:29" (1/3) ... [2022-07-13 04:21:29,878 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52fd2c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:21:29, skipping insertion in model container [2022-07-13 04:21:29,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:21:29,878 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:21:29" (2/3) ... [2022-07-13 04:21:29,878 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52fd2c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:21:29, skipping insertion in model container [2022-07-13 04:21:29,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:21:29,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:21:29" (3/3) ... [2022-07-13 04:21:29,880 INFO L354 chiAutomizerObserver]: Analyzing ICFG sum_2x3-2.c [2022-07-13 04:21:29,915 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 04:21:29,915 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 04:21:29,915 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 04:21:29,915 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 04:21:29,915 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 04:21:29,916 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 04:21:29,916 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 04:21:29,916 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 04:21:29,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 04:21:29,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 04:21:29,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:21:29,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:21:29,938 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 04:21:29,939 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 04:21:29,939 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 04:21:29,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 04:21:29,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 04:21:29,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:21:29,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:21:29,940 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 04:21:29,940 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 04:21:29,945 INFO L752 eck$LassoCheckResult]: Stem: 5#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(12, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;main_~a~0#1 := 2;main_~b~0#1 := 3; 2#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 9#sumENTRYtrue [2022-07-13 04:21:29,945 INFO L754 eck$LassoCheckResult]: Loop: 9#sumENTRYtrue ~n := #in~n;~m := #in~m; 14#L6true assume !(~n <= 0); 13#L9true call #t~ret4 := sum(~n - 1, 1 + ~m);< 9#sumENTRYtrue [2022-07-13 04:21:29,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:21:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2022-07-13 04:21:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:21:29,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581292318] [2022-07-13 04:21:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:21:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:21:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:21:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:21:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:21:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2022-07-13 04:21:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:21:30,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872203494] [2022-07-13 04:21:30,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:21:30,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:21:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:21:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:21:30,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:21:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2022-07-13 04:21:30,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:21:30,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000801604] [2022-07-13 04:21:30,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:21:30,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:21:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,128 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:21:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:21:30,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:21:30,305 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:21:30,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:21:30,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:21:30,306 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:21:30,306 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:21:30,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:21:30,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:21:30,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-2.c_Iteration1_Loop [2022-07-13 04:21:30,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:21:30,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:21:30,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,418 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:21:30,418 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:21:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,421 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) [2022-07-13 04:21:30,422 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 [2022-07-13 04:21:30,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:21:30,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,444 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:21:30,444 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:21:30,463 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 [2022-07-13 04:21:30,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,465 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) [2022-07-13 04:21:30,467 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 [2022-07-13 04:21:30,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:21:30,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:21:30,484 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:21:30,502 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 [2022-07-13 04:21:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,505 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) [2022-07-13 04:21:30,507 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 [2022-07-13 04:21:30,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:21:30,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:21:30,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~n=0} Honda state: {sum_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:21:30,550 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 [2022-07-13 04:21:30,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,556 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) [2022-07-13 04:21:30,558 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 [2022-07-13 04:21:30,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:21:30,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:21:30,588 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:21:30,606 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 [2022-07-13 04:21:30,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,609 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2022-07-13 04:21:30,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 04:21:30,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:21:30,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,654 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2022-07-13 04:21:30,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 04:21:30,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:21:30,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:21:30,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:21:30,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,699 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:21:30,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:21:30,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:21:30,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:21:30,699 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:21:30,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:21:30,700 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:21:30,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-2.c_Iteration1_Loop [2022-07-13 04:21:30,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:21:30,701 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:21:30,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:21:30,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:21:30,757 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:21:30,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,759 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2022-07-13 04:21:30,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 04:21:30,764 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 [2022-07-13 04:21:30,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:21:30,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:21:30,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:21:30,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:21:30,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:21:30,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:21:30,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:21:30,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:21:30,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,824 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2022-07-13 04:21:30,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 04:21:30,826 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 [2022-07-13 04:21:30,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:21:30,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:21:30,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:21:30,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:21:30,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:21:30,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:21:30,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:21:30,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:21:30,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,869 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2022-07-13 04:21:30,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 04:21:30,872 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 [2022-07-13 04:21:30,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:21:30,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:21:30,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:21:30,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:21:30,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:21:30,881 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:21:30,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:21:30,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:21:30,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,923 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2022-07-13 04:21:30,929 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 [2022-07-13 04:21:30,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:21:30,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:21:30,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:21:30,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:21:30,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:21:30,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:21:30,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:21:30,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 04:21:30,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:21:30,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:30,983 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2022-07-13 04:21:30,988 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 [2022-07-13 04:21:30,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:21:30,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:21:30,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:21:30,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:21:30,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:21:30,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:21:30,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:21:31,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 04:21:31,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:21:31,010 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 04:21:31,010 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 04:21:31,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:21:31,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:21:31,013 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2022-07-13 04:21:31,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:21:31,044 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:21:31,044 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:21:31,044 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2022-07-13 04:21:31,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 04:21:31,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:31,065 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:21:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:21:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:21:31,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:21:31,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:21:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:21:31,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:21:31,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:21:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:21:31,199 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 04:21:31,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:21:31,251 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states. [2022-07-13 04:21:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:21:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:21:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-13 04:21:31,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-07-13 04:21:31,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:21:31,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-07-13 04:21:31,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:21:31,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-07-13 04:21:31,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:21:31,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-07-13 04:21:31,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 04:21:31,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2022-07-13 04:21:31,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 04:21:31,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 04:21:31,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 04:21:31,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:21:31,266 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:21:31,266 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:21:31,266 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:21:31,266 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 04:21:31,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 04:21:31,267 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 04:21:31,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 04:21:31,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 04:21:31 BoogieIcfgContainer [2022-07-13 04:21:31,271 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 04:21:31,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 04:21:31,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 04:21:31,272 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 04:21:31,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:21:29" (3/4) ... [2022-07-13 04:21:31,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 04:21:31,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 04:21:31,274 INFO L158 Benchmark]: Toolchain (without parser) took 1811.07ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 47.6MB in the beginning and 56.1MB in the end (delta: -8.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-07-13 04:21:31,275 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:21:31,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.63ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 47.4MB in the beginning and 91.9MB in the end (delta: -44.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-13 04:21:31,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.09ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 90.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:21:31,276 INFO L158 Benchmark]: Boogie Preprocessor took 15.58ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:21:31,276 INFO L158 Benchmark]: RCFGBuilder took 167.57ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 81.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 04:21:31,282 INFO L158 Benchmark]: BuchiAutomizer took 1396.81ms. Allocated memory is still 115.3MB. Free memory was 81.2MB in the beginning and 56.7MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-13 04:21:31,282 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 115.3MB. Free memory was 56.7MB in the beginning and 56.1MB in the end (delta: 618.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:21:31,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 64.0MB in the beginning and 63.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.63ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 47.4MB in the beginning and 91.9MB in the end (delta: -44.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.09ms. Allocated memory is still 115.3MB. Free memory was 91.9MB in the beginning and 90.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.58ms. Allocated memory is still 115.3MB. Free memory was 90.6MB in the beginning and 89.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 167.57ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 81.2MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1396.81ms. Allocated memory is still 115.3MB. Free memory was 81.2MB in the beginning and 56.7MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 115.3MB. Free memory was 56.7MB in the beginning and 56.1MB in the end (delta: 618.4kB). 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 \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 04:21:31,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 04:21:31,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE