./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 f4b24e32 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-?-f4b24e3 [2022-07-14 15:37:41,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:37:41,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:37:41,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:37:41,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:37:41,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:37:41,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:37:41,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:37:41,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:37:41,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:37:41,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:37:41,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:37:41,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:37:41,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:37:41,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:37:41,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:37:41,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:37:41,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:37:41,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:37:41,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:37:41,729 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:37:41,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:37:41,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:37:41,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:37:41,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:37:41,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:37:41,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:37:41,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:37:41,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:37:41,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:37:41,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:37:41,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:37:41,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:37:41,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:37:41,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:37:41,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:37:41,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:37:41,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:37:41,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:37:41,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:37:41,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:37:41,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:37:41,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:37:41,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:37:41,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:37:41,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:37:41,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:37:41,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:37:41,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:37:41,767 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:37:41,768 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:37:41,768 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:37:41,768 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:37:41,768 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:37:41,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:37:41,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:37:41,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:37:41,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:37:41,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:37:41,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:37:41,771 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:37:41,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:37:41,771 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:37:41,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:37:41,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:37:41,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:37:41,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:37:41,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:37:41,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:37:41,773 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:37:41,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2022-07-14 15:37:41,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:37:41,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:37:41,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:37:41,989 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:37:41,990 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:37:41,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_while_int.i [2022-07-14 15:37:42,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5277dbb62/8a9c1f632d0c4a4389450adeb93ba818/FLAG96c17bb28 [2022-07-14 15:37:42,368 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:37:42,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_while_int.i [2022-07-14 15:37:42,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5277dbb62/8a9c1f632d0c4a4389450adeb93ba818/FLAG96c17bb28 [2022-07-14 15:37:42,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5277dbb62/8a9c1f632d0c4a4389450adeb93ba818 [2022-07-14 15:37:42,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:37:42,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:37:42,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:37:42,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:37:42,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:37:42,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e8a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42, skipping insertion in model container [2022-07-14 15:37:42,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:37:42,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:37:42,917 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] [2022-07-14 15:37:42,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:37:42,934 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:37:42,940 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] [2022-07-14 15:37:42,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:37:42,950 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:37:42,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42 WrapperNode [2022-07-14 15:37:42,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:37:42,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:37:42,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:37:42,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:37:42,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,968 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2022-07-14 15:37:42,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:37:42,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:37:42,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:37:42,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:37:42,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:37:42,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:37:42,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:37:42,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:37:42,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (1/1) ... [2022-07-14 15:37:42,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:42,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:37:43,008 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) [2022-07-14 15:37:43,031 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 [2022-07-14 15:37:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:37:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:37:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:37:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:37:43,082 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:37:43,083 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:37:43,142 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:37:43,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:37:43,145 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 15:37:43,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:37:43 BoogieIcfgContainer [2022-07-14 15:37:43,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:37:43,147 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:37:43,148 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:37:43,162 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:37:43,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:37:43,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:37:42" (1/3) ... [2022-07-14 15:37:43,163 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46db29a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:37:43, skipping insertion in model container [2022-07-14 15:37:43,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:37:43,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:37:42" (2/3) ... [2022-07-14 15:37:43,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46db29a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:37:43, skipping insertion in model container [2022-07-14 15:37:43,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:37:43,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:37:43" (3/3) ... [2022-07-14 15:37:43,165 INFO L354 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2022-07-14 15:37:43,213 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:37:43,213 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:37:43,214 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:37:43,214 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:37:43,214 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:37:43,214 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:37:43,214 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:37:43,214 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:37:43,220 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) [2022-07-14 15:37:43,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 15:37:43,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:37:43,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:37:43,240 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:37:43,240 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:37:43,240 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:37:43,241 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) [2022-07-14 15:37:43,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-14 15:37:43,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:37:43,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:37:43,242 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:37:43,242 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:37:43,246 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 [2022-07-14 15:37:43,246 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 [2022-07-14 15:37:43,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:37:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 15:37:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:37:43,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859865025] [2022-07-14 15:37:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:37:43,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:37:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,307 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:37:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:37:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:37:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash 40818, now seen corresponding path program 1 times [2022-07-14 15:37:43,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:37:43,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958429719] [2022-07-14 15:37:43,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:37:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:37:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:37:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:37:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:37:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-14 15:37:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:37:43,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616963268] [2022-07-14 15:37:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:37:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:37:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:37:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:37:43,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:37:43,510 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:37:43,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:37:43,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:37:43,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:37:43,511 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 15:37:43,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:37:43,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:37:43,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2022-07-14 15:37:43,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:37:43,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:37:43,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:37:43,615 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 15:37:43,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:37:43,618 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) [2022-07-14 15:37:43,620 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 [2022-07-14 15:37:43,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:37:43,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:37:43,671 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 [2022-07-14 15:37:43,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:37:43,673 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) [2022-07-14 15:37:43,674 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 [2022-07-14 15:37:43,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 15:37:43,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:37:43,735 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 15:37:43,743 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 [2022-07-14 15:37:43,743 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:37:43,743 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:37:43,743 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:37:43,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:37:43,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:37:43,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:37:43,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:37:43,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2022-07-14 15:37:43,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:37:43,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:37:43,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:37:43,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:37:43,829 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:37:43,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:37:43,831 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) [2022-07-14 15:37:43,839 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 [2022-07-14 15:37:43,839 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 [2022-07-14 15:37:43,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:37:43,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:37:43,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:37:43,846 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-14 15:37:43,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:37:43,849 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-14 15:37:43,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:37:43,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:37:43,876 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 15:37:43,876 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 15:37:43,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:37:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:37:43,879 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) [2022-07-14 15:37:43,880 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 [2022-07-14 15:37:43,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:37:43,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 15:37:43,880 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:37:43,881 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 [] [2022-07-14 15:37:43,898 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 [2022-07-14 15:37:43,903 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 15:37:43,930 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 [2022-07-14 15:37:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:37:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:37:43,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:37:43,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:37:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:37:43,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:37:43,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:37:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:37:44,029 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 [2022-07-14 15:37:44,030 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) [2022-07-14 15:37:44,052 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. [2022-07-14 15:37:44,053 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 [2022-07-14 15:37:44,057 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) [2022-07-14 15:37:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-07-14 15:37:44,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-14 15:37:44,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:37:44,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-14 15:37:44,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:37:44,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-14 15:37:44,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:37:44,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2022-07-14 15:37:44,061 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:37:44,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2022-07-14 15:37:44,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 15:37:44,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 15:37:44,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 15:37:44,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:37:44,063 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:37:44,063 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:37:44,063 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:37:44,064 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:37:44,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-14 15:37:44,064 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:37:44,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-14 15:37:44,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:37:44 BoogieIcfgContainer [2022-07-14 15:37:44,068 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:37:44,069 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:37:44,069 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:37:44,069 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:37:44,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:37:43" (3/4) ... [2022-07-14 15:37:44,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 15:37:44,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:37:44,071 INFO L158 Benchmark]: Toolchain (without parser) took 1263.70ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 73.2MB in the beginning and 98.0MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:37:44,072 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:37:44,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.22ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 83.4MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:37:44,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.49ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 82.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:37:44,073 INFO L158 Benchmark]: Boogie Preprocessor took 9.62ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:37:44,073 INFO L158 Benchmark]: RCFGBuilder took 167.48ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 72.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:37:44,074 INFO L158 Benchmark]: BuchiAutomizer took 920.74ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.4MB in the beginning and 98.0MB in the end (delta: -25.6MB). Peak memory consumption was 850.2kB. Max. memory is 16.1GB. [2022-07-14 15:37:44,074 INFO L158 Benchmark]: Witness Printer took 2.29ms. Allocated memory is still 132.1MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:37:44,076 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 109.1MB. Free memory was 82.0MB in the beginning and 82.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.22ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 83.4MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.49ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 82.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 9.62ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 167.48ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 72.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 920.74ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 72.4MB in the beginning and 98.0MB in the end (delta: -25.6MB). Peak memory consumption was 850.2kB. Max. memory is 16.1GB. * Witness Printer took 2.29ms. Allocated memory is still 132.1MB. Free memory is still 98.0MB. 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 0.6s. 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: 50ms 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! [2022-07-14 15:37:44,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE