./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/Addition01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:42:11,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:42:11,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:42:11,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:42:11,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:42:11,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:42:11,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:42:11,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:42:11,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:42:11,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:42:11,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:42:11,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:42:11,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:42:11,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:42:11,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:42:11,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:42:11,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:42:11,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:42:11,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:42:11,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:42:11,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:42:11,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:42:11,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:42:11,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:42:11,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:42:11,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:42:11,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:42:11,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:42:11,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:42:11,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:42:11,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:42:11,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:42:11,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:42:11,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:42:11,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:42:11,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:42:11,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:42:11,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:42:11,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:42:11,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:42:11,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:42:11,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:42:11,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:42:11,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:42:11,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:42:11,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:42:11,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:42:11,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:42:11,887 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:42:11,887 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:42:11,888 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:42:11,888 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:42:11,888 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:42:11,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:42:11,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:42:11,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:42:11,891 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:42:11,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:42:11,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:42:11,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:42:11,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:42:11,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:42:11,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:42:11,893 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:42:11,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 [2021-12-28 09:42:12,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:42:12,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:42:12,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:42:12,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:42:12,174 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:42:12,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition01-2.c [2021-12-28 09:42:12,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44da302e/1b3f72a773ce40cab8cbfc894f9679c6/FLAGe73cb220f [2021-12-28 09:42:12,574 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:42:12,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c [2021-12-28 09:42:12,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44da302e/1b3f72a773ce40cab8cbfc894f9679c6/FLAGe73cb220f [2021-12-28 09:42:13,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44da302e/1b3f72a773ce40cab8cbfc894f9679c6 [2021-12-28 09:42:13,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:42:13,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:42:13,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:42:13,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:42:13,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:42:13,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4266a94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13, skipping insertion in model container [2021-12-28 09:42:13,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:42:13,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:42:13,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2021-12-28 09:42:13,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:42:13,150 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:42:13,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2021-12-28 09:42:13,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:42:13,199 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:42:13,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13 WrapperNode [2021-12-28 09:42:13,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:42:13,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:42:13,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:42:13,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:42:13,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,227 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-12-28 09:42:13,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:42:13,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:42:13,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:42:13,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:42:13,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:42:13,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:42:13,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:42:13,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:42:13,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (1/1) ... [2021-12-28 09:42:13,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:13,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:13,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:42:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:42:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:42:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:42:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-28 09:42:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-28 09:42:13,355 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:42:13,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:42:13,439 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:42:13,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:42:13,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 09:42:13,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:13 BoogieIcfgContainer [2021-12-28 09:42:13,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:42:13,445 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:42:13,445 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:42:13,447 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:42:13,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:13,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:42:13" (1/3) ... [2021-12-28 09:42:13,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b464a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:42:13, skipping insertion in model container [2021-12-28 09:42:13,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:13,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:42:13" (2/3) ... [2021-12-28 09:42:13,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b464a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:42:13, skipping insertion in model container [2021-12-28 09:42:13,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:42:13,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:13" (3/3) ... [2021-12-28 09:42:13,451 INFO L388 chiAutomizerObserver]: Analyzing ICFG Addition01-2.c [2021-12-28 09:42:13,481 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:42:13,481 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:42:13,481 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:42:13,482 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:42:13,482 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:42:13,482 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:42:13,482 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:42:13,482 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:42:13,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-28 09:42:13,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:42:13,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:13,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:13,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-28 09:42:13,517 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-28 09:42:13,517 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:42:13,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-28 09:42:13,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:42:13,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:13,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:13,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-28 09:42:13,520 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-28 09:42:13,525 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6#L30true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 1073741823);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L36true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 1073741823); 19#L41true call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 10#additionENTRYtrue [2021-12-28 09:42:13,526 INFO L793 eck$LassoCheckResult]: Loop: 10#additionENTRYtrue ~m := #in~m;~n := #in~n; 8#L16true assume !(0 == ~n); 16#L19true assume ~n > 0; 17#L20true call #t~ret4 := addition(1 + ~m, ~n - 1);< 10#additionENTRYtrue [2021-12-28 09:42:13,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,531 INFO L85 PathProgramCache]: Analyzing trace with hash 28695875, now seen corresponding path program 1 times [2021-12-28 09:42:13,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296260263] [2021-12-28 09:42:13,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,617 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:13,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1697202, now seen corresponding path program 1 times [2021-12-28 09:42:13,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517269991] [2021-12-28 09:42:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,661 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:13,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:13,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1295733236, now seen corresponding path program 1 times [2021-12-28 09:42:13,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:13,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465669366] [2021-12-28 09:42:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:13,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,685 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:13,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:13,845 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:42:13,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:42:13,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:42:13,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:42:13,845 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:42:13,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:13,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:42:13,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:42:13,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2021-12-28 09:42:13,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:42:13,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:42:13,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:13,932 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:42:13,933 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:42:13,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:13,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:13,936 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) [2021-12-28 09:42:13,952 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 [2021-12-28 09:42:13,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:13,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:13,986 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:13,987 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:14,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-28 09:42:14,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,007 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) [2021-12-28 09:42:14,009 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 [2021-12-28 09:42:14,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:14,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:14,032 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:14,051 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 [2021-12-28 09:42:14,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,053 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) [2021-12-28 09:42:14,054 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 [2021-12-28 09:42:14,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:14,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,099 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 [2021-12-28 09:42:14,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,101 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) [2021-12-28 09:42:14,102 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 [2021-12-28 09:42:14,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:42:14,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:14,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=-5}, {addition_#in~m=0}, {addition_#in~m=6}] Lambdas: [1, 6, 1] Nus: [1, 0] [2021-12-28 09:42:14,154 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 [2021-12-28 09:42:14,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,156 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:14,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-28 09:42:14,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:14,183 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:14,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,199 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:14,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-28 09:42:14,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,239 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-28 09:42:14,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:42:14,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:14,271 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:42:14,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,276 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:42:14,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:42:14,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:42:14,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:42:14,276 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:42:14,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:42:14,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:42:14,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2021-12-28 09:42:14,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:42:14,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:42:14,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:14,362 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:42:14,365 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:42:14,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,368 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:42:14,371 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 [2021-12-28 09:42:14,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,381 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:14,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-28 09:42:14,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-28 09:42:14,403 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 [2021-12-28 09:42:14,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:14,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,439 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,443 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 [2021-12-28 09:42:14,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-28 09:42:14,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:14,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-28 09:42:14,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-28 09:42:14,478 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 [2021-12-28 09:42:14,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:14,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,530 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 [2021-12-28 09:42:14,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-28 09:42:14,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:14,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-28 09:42:14,569 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 [2021-12-28 09:42:14,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:14,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:14,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:14,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:14,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:14,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:14,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:14,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:42:14,592 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-28 09:42:14,592 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-28 09:42:14,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:14,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:14,594 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:14,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-28 09:42:14,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:42:14,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:42:14,597 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:42:14,597 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2021-12-28 09:42:14,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-28 09:42:14,614 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:42:14,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:14,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 09:42:14,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:42:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:14,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 09:42:14,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:42:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:14,752 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-28 09:42:14,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:14,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 73 transitions. Complement of second has 12 states. [2021-12-28 09:42:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-28 09:42:14,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-12-28 09:42:14,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-28 09:42:14,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:14,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-28 09:42:14,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:14,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 8 letters. [2021-12-28 09:42:14,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:14,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 73 transitions. [2021-12-28 09:42:14,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:42:14,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 27 states and 30 transitions. [2021-12-28 09:42:14,829 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-28 09:42:14,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-28 09:42:14,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2021-12-28 09:42:14,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:42:14,830 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-28 09:42:14,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2021-12-28 09:42:14,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2021-12-28 09:42:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-28 09:42:14,874 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-28 09:42:14,874 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-28 09:42:14,874 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:42:14,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-28 09:42:14,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:42:14,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:42:14,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:42:14,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:42:14,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-28 09:42:14,877 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY 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(15, 2);call #Ultimate.allocInit(12, 3); 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 145#L30 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 1073741823);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 146#L36 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 1073741823); 140#L41 call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 142#additionENTRY ~m := #in~m;~n := #in~n; 148#L16 assume !(0 == ~n); 149#L19 assume !(~n > 0); 147#L22 [2021-12-28 09:42:14,877 INFO L793 eck$LassoCheckResult]: Loop: 147#L22 assume ~n < 0; 137#L23 call #t~ret5 := addition(~m - 1, 1 + ~n);< 139#additionENTRY ~m := #in~m;~n := #in~n; 154#L16 assume !(0 == ~n); 153#L19 assume !(~n > 0); 147#L22 [2021-12-28 09:42:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 180345180, now seen corresponding path program 1 times [2021-12-28 09:42:14,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:14,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549264993] [2021-12-28 09:42:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:14,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:14,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:42:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549264993] [2021-12-28 09:42:14,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549264993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:42:14,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:42:14,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:42:14,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458640013] [2021-12-28 09:42:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:42:14,972 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-28 09:42:14,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash 65148085, now seen corresponding path program 1 times [2021-12-28 09:42:14,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:42:14,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138766725] [2021-12-28 09:42:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:42:14,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:42:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:14,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:42:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:42:14,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:42:15,064 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:42:15,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:42:15,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:42:15,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:42:15,064 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:42:15,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:42:15,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:42:15,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2021-12-28 09:42:15,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:42:15,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:42:15,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:15,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:15,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:15,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:15,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:15,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:42:15,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:42:15,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,128 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-28 09:42:15,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:15,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,179 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-28 09:42:15,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:42:15,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:15,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-1, addition_~m=-8} Honda state: {addition_#in~m=-1, addition_~m=-8} Generalized eigenvectors: [{addition_#in~m=-1, addition_~m=-1}, {addition_#in~m=1, addition_~m=0}, {addition_#in~m=-8, addition_~m=0}] Lambdas: [1, 8, 0] Nus: [0, 1] [2021-12-28 09:42:15,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,376 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-28 09:42:15,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:15,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:15,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:15,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,404 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-28 09:42:15,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:15,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,412 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:15,412 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret5=0} Honda state: {addition_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:15,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,428 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-28 09:42:15,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:15,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:42:15,438 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-28 09:42:15,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,457 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-28 09:42:15,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:42:15,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:15,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:15,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:15,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:15,532 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:15,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-28 09:42:15,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:42:15,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:42:20,429 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:42:20,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-28 09:42:20,433 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:42:20,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:42:20,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:42:20,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:42:20,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:42:20,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:42:20,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:42:20,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2021-12-28 09:42:20,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:42:20,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:42:20,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:20,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:20,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:20,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:20,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:42:20,501 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:42:20,501 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:42:20,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,503 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-28 09:42:20,505 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 [2021-12-28 09:42:20,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:20,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:20,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:20,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:20,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:20,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:20,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:20,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:20,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:20,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,531 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-28 09:42:20,532 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 [2021-12-28 09:42:20,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:20,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:20,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:20,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:20,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:20,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:20,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:20,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:20,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:20,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,567 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-28 09:42:20,568 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 [2021-12-28 09:42:20,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:20,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:20,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:20,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:20,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:20,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:20,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:20,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:20,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-28 09:42:20,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,604 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-28 09:42:20,605 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 [2021-12-28 09:42:20,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:20,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:20,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:20,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:20,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:20,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:20,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:20,613 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:42:20,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-28 09:42:20,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,629 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-28 09:42:20,634 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 [2021-12-28 09:42:20,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:42:20,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:42:20,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:42:20,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:42:20,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:42:20,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:42:20,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:42:20,655 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:42:20,659 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-28 09:42:20,659 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-28 09:42:20,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:42:20,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:42:20,668 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:42:20,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-28 09:42:20,670 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:42:20,670 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:42:20,670 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:42:20,670 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2021-12-28 09:42:20,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:20,689 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:42:20,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:42:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:20,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 09:42:20,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:42:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:42:20,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 09:42:20,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:42:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:42:20,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:42:20,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:20,837 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 37 transitions. Complement of second has 13 states. [2021-12-28 09:42:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-28 09:42:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-28 09:42:20,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 5 letters. [2021-12-28 09:42:20,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:20,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 5 letters. [2021-12-28 09:42:20,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:20,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 10 letters. [2021-12-28 09:42:20,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:42:20,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-12-28 09:42:20,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:42:20,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 31 transitions. [2021-12-28 09:42:20,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-28 09:42:20,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-28 09:42:20,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2021-12-28 09:42:20,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-28 09:42:20,849 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-28 09:42:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2021-12-28 09:42:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-28 09:42:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-12-28 09:42:20,852 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-28 09:42:20,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:42:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:42:20,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:42:20,856 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:42:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:42:20,886 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-12-28 09:42:20,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:42:20,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2021-12-28 09:42:20,888 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:42:20,888 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-12-28 09:42:20,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:42:20,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:42:20,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:42:20,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:42:20,889 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:42:20,889 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:42:20,889 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:42:20,889 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:42:20,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:42:20,889 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:42:20,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:42:20,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:42:20 BoogieIcfgContainer [2021-12-28 09:42:20,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:42:20,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:42:20,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:42:20,898 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:42:20,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:42:13" (3/4) ... [2021-12-28 09:42:20,902 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:42:20,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:42:20,903 INFO L158 Benchmark]: Toolchain (without parser) took 7886.70ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 47.1MB in the end (delta: -820.0kB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,903 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 46.4MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:42:20,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.24ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 49.1MB in the end (delta: -3.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.89ms. Allocated memory is still 65.0MB. Free memory was 49.1MB in the beginning and 47.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:42:20,908 INFO L158 Benchmark]: Boogie Preprocessor took 26.27ms. Allocated memory is still 65.0MB. Free memory was 47.7MB in the beginning and 46.7MB in the end (delta: 995.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,910 INFO L158 Benchmark]: RCFGBuilder took 188.59ms. Allocated memory is still 65.0MB. Free memory was 46.7MB in the beginning and 37.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,910 INFO L158 Benchmark]: BuchiAutomizer took 7452.58ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.7MB in the beginning and 47.7MB in the end (delta: -9.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,911 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 47.1MB in the end (delta: 613.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:42:20,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 46.4MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.24ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 49.1MB in the end (delta: -3.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.89ms. Allocated memory is still 65.0MB. Free memory was 49.1MB in the beginning and 47.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.27ms. Allocated memory is still 65.0MB. Free memory was 47.7MB in the beginning and 46.7MB in the end (delta: 995.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 188.59ms. Allocated memory is still 65.0MB. Free memory was 46.7MB in the beginning and 37.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7452.58ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.7MB in the beginning and 47.7MB in the end (delta: -9.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 81.8MB. Free memory was 47.7MB in the beginning and 47.1MB in the end (delta: 613.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 6.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 30 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp86 dnf100 smp100 tf111 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-28 09:42:20,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-28 09:42:21,151 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