./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test_while_int.i --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/ldv-regression/test_while_int.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 f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:57:15,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:57:15,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:57:15,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:57:15,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:57:15,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:57:15,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:57:15,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:57:15,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:57:15,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:57:15,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:57:15,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:57:15,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:57:15,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:57:15,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:57:15,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:57:15,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:57:15,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:57:15,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:57:15,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:57:15,851 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:57:15,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:57:15,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:57:15,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:57:15,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:57:15,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:57:15,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:57:15,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:57:15,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:57:15,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:57:15,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:57:15,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:57:15,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:57:15,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:57:15,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:57:15,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:57:15,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:57:15,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:57:15,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:57:15,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:57:15,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:57:15,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:57:15,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:57:15,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:57:15,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:57:15,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:57:15,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:57:15,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:57:15,909 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:57:15,909 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:57:15,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:57:15,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:57:15,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:57:15,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:57:15,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:57:15,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:57:15,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:57:15,912 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:57:15,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2022-07-13 03:57:16,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:57:16,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:57:16,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:57:16,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:57:16,137 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:57:16,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_while_int.i [2022-07-13 03:57:16,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/597704dd9/7b53333500194bc8adcca254ffb3ee55/FLAGcb589ff60 [2022-07-13 03:57:16,533 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:57:16,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_while_int.i [2022-07-13 03:57:16,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/597704dd9/7b53333500194bc8adcca254ffb3ee55/FLAGcb589ff60 [2022-07-13 03:57:16,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/597704dd9/7b53333500194bc8adcca254ffb3ee55 [2022-07-13 03:57:16,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:57:16,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:57:16,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:57:16,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:57:16,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:57:16,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79365cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16, skipping insertion in model container [2022-07-13 03:57:16,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:57:16,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:57:16,644 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/test_while_int.i[296,309] [2022-07-13 03:57:16,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:57:16,667 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:57:16,676 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/test_while_int.i[296,309] [2022-07-13 03:57:16,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:57:16,719 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:57:16,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16 WrapperNode [2022-07-13 03:57:16,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:57:16,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:57:16,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:57:16,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:57:16,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,748 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2022-07-13 03:57:16,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:57:16,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:57:16,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:57:16,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:57:16,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:57:16,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:57:16,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:57:16,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:57:16,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (1/1) ... [2022-07-13 03:57:16,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:16,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:57:16,794 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 03:57:16,812 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 03:57:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:57:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:57:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:57:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:57:16,865 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:57:16,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:57:16,924 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:57:16,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:57:16,928 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:57:16,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:57:16 BoogieIcfgContainer [2022-07-13 03:57:16,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:57:16,930 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:57:16,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:57:16,937 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:57:16,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:57:16,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:57:16" (1/3) ... [2022-07-13 03:57:16,938 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d59c43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:57:16, skipping insertion in model container [2022-07-13 03:57:16,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:57:16,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:57:16" (2/3) ... [2022-07-13 03:57:16,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d59c43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:57:16, skipping insertion in model container [2022-07-13 03:57:16,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:57:16,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:57:16" (3/3) ... [2022-07-13 03:57:16,940 INFO L354 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2022-07-13 03:57:16,980 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:57:16,980 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:57:16,980 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:57:16,980 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:57:16,980 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:57:16,980 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:57:16,980 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:57:16,980 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:57:16,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:57:16,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:57:16,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:57:16,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:57:16,997 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:57:16,997 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:57:16,997 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:57:16,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:57:16,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-13 03:57:16,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:57:16,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:57:16,998 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:57:16,998 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:57:17,002 INFO L752 eck$LassoCheckResult]: Stem: 3#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(17, 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~post4#1, main_~i~0#1;main_~i~0#1 := 0; 6#L26-2true [2022-07-13 03:57:17,003 INFO L754 eck$LassoCheckResult]: Loop: 6#L26-2true assume !!(main_~i~0#1 < 5);main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;assume { :begin_inline_check_error } true;check_error_#in~b#1 := (if 3 != main_~i~0#1 then 1 else 0);havoc check_error_~b#1;check_error_~b#1 := check_error_#in~b#1; 10#L20true assume 0 != check_error_~b#1; 8#L19true assume { :end_inline_check_error } true; 6#L26-2true [2022-07-13 03:57:17,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:57:17,007 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:57:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:57:17,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364653090] [2022-07-13 03:57:17,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:57:17,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:57:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,062 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:57:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:57:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:57:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash 40818, now seen corresponding path program 1 times [2022-07-13 03:57:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:57:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275593977] [2022-07-13 03:57:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:57:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:57:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,088 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:57:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:57:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:57:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-13 03:57:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:57:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702662975] [2022-07-13 03:57:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:57:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:57:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,103 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:57:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:57:17,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:57:17,192 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:57:17,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:57:17,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:57:17,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:57:17,193 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:57:17,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:57:17,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:57:17,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2022-07-13 03:57:17,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:57:17,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:57:17,205 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 03:57:17,223 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 03:57:17,225 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 03:57:17,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:57:17,293 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:57:17,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:57:17,296 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 03:57:17,298 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 03:57:17,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:57:17,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:57:17,334 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 03:57:17,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:57:17,336 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 03:57:17,337 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 03:57:17,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:57:17,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:57:17,399 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:57:17,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 03:57:17,402 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:57:17,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:57:17,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:57:17,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:57:17,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:57:17,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:57:17,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:57:17,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2022-07-13 03:57:17,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:57:17,403 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:57:17,404 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 03:57:17,410 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 03:57:17,412 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 03:57:17,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:57:17,485 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:57:17,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:57:17,497 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 03:57:17,498 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 03:57:17,499 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 03:57:17,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:57:17,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:57:17,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:57:17,506 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:57:17,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:57:17,516 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:57:17,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:57:17,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:57:17,535 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:57:17,535 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:57:17,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:57:17,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:57:17,537 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 03:57:17,539 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 03:57:17,568 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:57:17,568 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:57:17,568 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:57:17,569 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2022-07-13 03:57:17,586 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 03:57:17,589 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:57:17,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:57:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:57:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:57:17,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:57:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:57:17,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:57:17,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:57:17,702 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 03:57:17,730 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:57:17,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-13 03:57:17,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2022-07-13 03:57:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:57:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-13 03:57:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-07-13 03:57:17,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-13 03:57:17,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:57:17,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-13 03:57:17,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:57:17,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-13 03:57:17,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:57:17,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-07-13 03:57:17,780 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:57:17,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2022-07-13 03:57:17,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:57:17,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:57:17,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:57:17,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:57:17,784 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:57:17,784 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:57:17,784 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:57:17,784 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:57:17,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:57:17,784 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:57:17,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:57:17,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:57:17 BoogieIcfgContainer [2022-07-13 03:57:17,793 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:57:17,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:57:17,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:57:17,795 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:57:17,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:57:16" (3/4) ... [2022-07-13 03:57:17,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:57:17,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:57:17,800 INFO L158 Benchmark]: Toolchain (without parser) took 1250.24ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 53.7MB in the beginning and 39.1MB in the end (delta: 14.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-07-13 03:57:17,800 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:57:17,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.58ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 53.5MB in the beginning and 95.8MB in the end (delta: -42.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-07-13 03:57:17,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.56ms. Allocated memory is still 117.4MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 867.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:57:17,807 INFO L158 Benchmark]: Boogie Preprocessor took 17.14ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:57:17,807 INFO L158 Benchmark]: RCFGBuilder took 162.47ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 85.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:57:17,808 INFO L158 Benchmark]: BuchiAutomizer took 863.08ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 39.1MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-07-13 03:57:17,809 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:57:17,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.58ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 53.5MB in the beginning and 95.8MB in the end (delta: -42.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.56ms. Allocated memory is still 117.4MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 867.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.14ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 93.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 162.47ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 85.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 863.08ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 39.1MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 117.4MB. Free memory is still 39.1MB. 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 -2 * i + 9 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 83ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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 03:57:17,848 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 03:57:18,065 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