./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/Addition03-1.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 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 10:02:22,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 10:02:22,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 10:02:22,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 10:02:22,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 10:02:22,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 10:02:22,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 10:02:22,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 10:02:22,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 10:02:22,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 10:02:22,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 10:02:22,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 10:02:22,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 10:02:22,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 10:02:22,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 10:02:22,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 10:02:22,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 10:02:22,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 10:02:22,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 10:02:22,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 10:02:22,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 10:02:22,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 10:02:22,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 10:02:22,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 10:02:22,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 10:02:22,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 10:02:22,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 10:02:22,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 10:02:22,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 10:02:22,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 10:02:22,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 10:02:22,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 10:02:22,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 10:02:22,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 10:02:22,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 10:02:22,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 10:02:22,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 10:02:22,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 10:02:22,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 10:02:22,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 10:02:22,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 10:02:22,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 10:02:22,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 10:02:22,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 10:02:22,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 10:02:22,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 10:02:22,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 10:02:22,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 10:02:22,870 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 10:02:22,871 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 10:02:22,873 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 10:02:22,873 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 10:02:22,874 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 10:02:22,874 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 10:02:22,874 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 10:02:22,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 10:02:22,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 10:02:22,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 10:02:22,876 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 10:02:22,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 10:02:22,876 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 10:02:22,876 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 10:02:22,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 10:02:22,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 10:02:22,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 10:02:22,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 10:02:22,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 10:02:22,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 10:02:22,879 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 10:02:22,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2021-12-16 10:02:23,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 10:02:23,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 10:02:23,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 10:02:23,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 10:02:23,114 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 10:02:23,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2021-12-16 10:02:23,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b17dc88/f513fbb1eefc4c27af2acaee14f0bf6d/FLAG38eb7edaf [2021-12-16 10:02:23,572 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 10:02:23,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2021-12-16 10:02:23,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b17dc88/f513fbb1eefc4c27af2acaee14f0bf6d/FLAG38eb7edaf [2021-12-16 10:02:23,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b17dc88/f513fbb1eefc4c27af2acaee14f0bf6d [2021-12-16 10:02:23,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 10:02:23,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 10:02:23,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 10:02:23,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 10:02:23,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 10:02:23,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:02:23" (1/1) ... [2021-12-16 10:02:23,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3caa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:23, skipping insertion in model container [2021-12-16 10:02:23,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:02:23" (1/1) ... [2021-12-16 10:02:23,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 10:02:24,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 10:02:24,121 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/Addition03-1.c[840,853] [2021-12-16 10:02:24,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:02:24,127 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 10:02:24,137 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/Addition03-1.c[840,853] [2021-12-16 10:02:24,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 10:02:24,148 INFO L208 MainTranslator]: Completed translation [2021-12-16 10:02:24,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24 WrapperNode [2021-12-16 10:02:24,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 10:02:24,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 10:02:24,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 10:02:24,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 10:02:24,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,175 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-12-16 10:02:24,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 10:02:24,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 10:02:24,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 10:02:24,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 10:02:24,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 10:02:24,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 10:02:24,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 10:02:24,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 10:02:24,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (1/1) ... [2021-12-16 10:02:24,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:24,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:24,215 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) [2021-12-16 10:02:24,223 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 [2021-12-16 10:02:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 10:02:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 10:02:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 10:02:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 10:02:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-16 10:02:24,244 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-16 10:02:24,282 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 10:02:24,283 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 10:02:24,364 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 10:02:24,369 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 10:02:24,369 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 10:02:24,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:24 BoogieIcfgContainer [2021-12-16 10:02:24,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 10:02:24,372 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 10:02:24,372 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 10:02:24,375 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 10:02:24,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:24,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 10:02:23" (1/3) ... [2021-12-16 10:02:24,376 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b0084cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:02:24, skipping insertion in model container [2021-12-16 10:02:24,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:24,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:02:24" (2/3) ... [2021-12-16 10:02:24,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b0084cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 10:02:24, skipping insertion in model container [2021-12-16 10:02:24,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 10:02:24,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:24" (3/3) ... [2021-12-16 10:02:24,379 INFO L388 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2021-12-16 10:02:24,414 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 10:02:24,414 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 10:02:24,414 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 10:02:24,414 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 10:02:24,414 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 10:02:24,415 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 10:02:24,415 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 10:02:24,415 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 10:02:24,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2021-12-16 10:02:24,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:24,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:24,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:24,449 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 10:02:24,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 10:02:24,449 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 10:02:24,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2021-12-16 10:02:24,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:24,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:24,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:24,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-16 10:02:24,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 10:02:24,459 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;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L31true call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 9#additionENTRYtrue [2021-12-16 10:02:24,459 INFO L793 eck$LassoCheckResult]: Loop: 9#additionENTRYtrue ~m := #in~m;~n := #in~n; 7#L16true assume !(0 == ~n); 14#L19true assume ~n > 0; 15#L20true call #t~ret4 := addition(1 + ~m, ~n - 1);< 9#additionENTRYtrue [2021-12-16 10:02:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:24,464 INFO L85 PathProgramCache]: Analyzing trace with hash 29886, now seen corresponding path program 1 times [2021-12-16 10:02:24,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:24,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169873110] [2021-12-16 10:02:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:24,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,567 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,608 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:24,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1389362, now seen corresponding path program 1 times [2021-12-16 10:02:24,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794839993] [2021-12-16 10:02:24,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:24,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,637 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:24,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1831010671, now seen corresponding path program 1 times [2021-12-16 10:02:24,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:24,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227937201] [2021-12-16 10:02:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:24,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,675 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:24,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:24,867 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:24,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:24,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:24,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:24,869 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 10:02:24,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:24,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:24,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:24,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2021-12-16 10:02:24,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:24,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:24,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:24,981 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:24,982 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 10:02:24,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:24,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:24,986 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) [2021-12-16 10:02:24,987 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 [2021-12-16 10:02:24,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:24,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:25,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:25,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:25,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,041 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) [2021-12-16 10:02:25,043 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 [2021-12-16 10:02:25,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:25,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,068 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:25,068 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:25,095 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 [2021-12-16 10:02:25,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,097 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) [2021-12-16 10:02:25,098 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 [2021-12-16 10:02:25,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:25,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,147 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 [2021-12-16 10:02:25,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,149 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) [2021-12-16 10:02:25,151 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 [2021-12-16 10:02:25,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:25,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,177 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:25,177 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=1}, {addition_#in~m=-3}, {addition_#in~m=3}] Lambdas: [4, 2, 1] Nus: [1, 1] [2021-12-16 10:02:25,199 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 [2021-12-16 10:02:25,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,200 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) [2021-12-16 10:02:25,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:25,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,205 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 [2021-12-16 10:02:25,212 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:25,212 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:25,229 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 [2021-12-16 10:02:25,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,231 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) [2021-12-16 10:02:25,232 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 [2021-12-16 10:02:25,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:25,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,274 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 [2021-12-16 10:02:25,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,276 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) [2021-12-16 10:02:25,278 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 [2021-12-16 10:02:25,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:25,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:25,319 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 10:02:25,324 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 [2021-12-16 10:02:25,325 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:25,325 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:25,325 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:25,325 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:25,325 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 10:02:25,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:25,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:25,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2021-12-16 10:02:25,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:25,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:25,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:25,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:25,411 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 10:02:25,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,424 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) [2021-12-16 10:02:25,429 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 [2021-12-16 10:02:25,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,445 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 [2021-12-16 10:02:25,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:25,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:25,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,490 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) [2021-12-16 10:02:25,498 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 [2021-12-16 10:02:25,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,508 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 [2021-12-16 10:02:25,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:25,538 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 [2021-12-16 10:02:25,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,539 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) [2021-12-16 10:02:25,540 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 [2021-12-16 10:02:25,550 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 [2021-12-16 10:02:25,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:25,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:25,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,599 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) [2021-12-16 10:02:25,606 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 [2021-12-16 10:02:25,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,618 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 [2021-12-16 10:02:25,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:25,649 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 [2021-12-16 10:02:25,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,650 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) [2021-12-16 10:02:25,652 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 [2021-12-16 10:02:25,654 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 [2021-12-16 10:02:25,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:25,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-16 10:02:25,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,681 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) [2021-12-16 10:02:25,683 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 [2021-12-16 10:02:25,684 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 [2021-12-16 10:02:25,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:25,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:25,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:25,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:25,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:25,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:25,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:25,696 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 10:02:25,698 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 10:02:25,698 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-16 10:02:25,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:25,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:25,701 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) [2021-12-16 10:02:25,705 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 [2021-12-16 10:02:25,707 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 10:02:25,708 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 10:02:25,708 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 10:02:25,708 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2021-12-16 10:02:25,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:25,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 10:02:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:25,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 10:02:25,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:25,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 10:02:25,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:25,867 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 [2021-12-16 10:02:25,869 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-16 10:02:25,934 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 [2021-12-16 10:02:25,994 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 49 states and 67 transitions. Complement of second has 12 states. [2021-12-16 10:02:26,005 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 [2021-12-16 10:02:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-16 10:02:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-16 10:02:26,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-16 10:02:26,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:26,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-16 10:02:26,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:26,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2021-12-16 10:02:26,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:26,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2021-12-16 10:02:26,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:26,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 25 states and 28 transitions. [2021-12-16 10:02:26,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-16 10:02:26,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-16 10:02:26,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2021-12-16 10:02:26,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 10:02:26,028 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-12-16 10:02:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2021-12-16 10:02:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2021-12-16 10:02:26,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2021-12-16 10:02:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-12-16 10:02:26,051 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-16 10:02:26,051 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-12-16 10:02:26,052 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 10:02:26,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-12-16 10:02:26,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:26,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:26,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:26,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 10:02:26,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 10:02:26,056 INFO L791 eck$LassoCheckResult]: Stem: 129#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); 130#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;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 127#L31 call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 136#additionENTRY ~m := #in~m;~n := #in~n; 131#L16 assume !(0 == ~n); 132#L19 assume !(~n > 0); 135#L22 [2021-12-16 10:02:26,056 INFO L793 eck$LassoCheckResult]: Loop: 135#L22 assume ~n < 0; 124#L23 call #t~ret5 := addition(~m - 1, 1 + ~n);< 126#additionENTRY ~m := #in~m;~n := #in~n; 139#L16 assume !(0 == ~n); 138#L19 assume !(~n > 0); 135#L22 [2021-12-16 10:02:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash 890348855, now seen corresponding path program 1 times [2021-12-16 10:02:26,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:26,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276512838] [2021-12-16 10:02:26,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:26,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,072 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash 55605035, now seen corresponding path program 1 times [2021-12-16 10:02:26,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:26,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056391839] [2021-12-16 10:02:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:26,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,078 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1017357237, now seen corresponding path program 1 times [2021-12-16 10:02:26,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:26,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719891603] [2021-12-16 10:02:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:26,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:26,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:26,204 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:26,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:26,205 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:26,205 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:26,205 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 10:02:26,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:26,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:26,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2021-12-16 10:02:26,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:26,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:26,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:26,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:26,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:26,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:26,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:26,303 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:26,303 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 10:02:26,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,308 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) [2021-12-16 10:02:26,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:26,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,327 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 [2021-12-16 10:02:26,348 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 [2021-12-16 10:02:26,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,349 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) [2021-12-16 10:02:26,350 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 [2021-12-16 10:02:26,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:26,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:26,476 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=1, addition_~m=5} Honda state: {addition_#in~m=1, addition_~m=5} Generalized eigenvectors: [{addition_#in~m=0, addition_~m=-1}, {addition_#in~m=-1, addition_~m=0}, {addition_#in~m=4, addition_~m=0}] Lambdas: [1, 4, 0] Nus: [1, 1] [2021-12-16 10:02:26,492 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 [2021-12-16 10:02:26,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,493 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) [2021-12-16 10:02:26,496 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 [2021-12-16 10:02:26,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:26,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,518 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:26,518 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:26,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-16 10:02:26,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,535 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) [2021-12-16 10:02:26,535 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 [2021-12-16 10:02:26,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:26,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:26,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret5=0} Honda state: {addition_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:26,567 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 [2021-12-16 10:02:26,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,569 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) [2021-12-16 10:02:26,570 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 [2021-12-16 10:02:26,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:26,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:26,578 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:26,594 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 [2021-12-16 10:02:26,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,596 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) [2021-12-16 10:02:26,602 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 [2021-12-16 10:02:26,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:26,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:26,633 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 [2021-12-16 10:02:26,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:26,634 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) [2021-12-16 10:02:26,635 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 [2021-12-16 10:02:26,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:26,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:34,269 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 10:02:34,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:34,274 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:34,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:34,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:34,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:34,274 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 10:02:34,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:34,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:34,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2021-12-16 10:02:34,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:34,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:34,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:34,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 10:02:34,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,371 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) [2021-12-16 10:02:34,372 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 [2021-12-16 10:02:34,373 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 [2021-12-16 10:02:34,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:34,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:34,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:34,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:34,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:34,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:34,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:34,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:34,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-16 10:02:34,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,398 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) [2021-12-16 10:02:34,399 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 [2021-12-16 10:02:34,400 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 [2021-12-16 10:02:34,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:34,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:34,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:34,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:34,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:34,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:34,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:34,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:34,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-16 10:02:34,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,442 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) [2021-12-16 10:02:34,444 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 [2021-12-16 10:02:34,444 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 [2021-12-16 10:02:34,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:34,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:34,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:34,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:34,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:34,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:34,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:34,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:34,468 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 [2021-12-16 10:02:34,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,470 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) [2021-12-16 10:02:34,471 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 [2021-12-16 10:02:34,472 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 [2021-12-16 10:02:34,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:34,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:34,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:34,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:34,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:34,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:34,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:34,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:34,497 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 [2021-12-16 10:02:34,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,499 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) [2021-12-16 10:02:34,499 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 [2021-12-16 10:02:34,500 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 [2021-12-16 10:02:34,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:34,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:34,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:34,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:34,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:34,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:34,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:34,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 10:02:34,519 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 10:02:34,519 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-16 10:02:34,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,521 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) [2021-12-16 10:02:34,521 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 [2021-12-16 10:02:34,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 10:02:34,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 10:02:34,522 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 10:02:34,523 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2021-12-16 10:02:34,571 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 [2021-12-16 10:02:34,572 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 10:02:34,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:34,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 10:02:34,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:34,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 10:02:34,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:34,723 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 [2021-12-16 10:02:34,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-16 10:02:34,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 30 states and 35 transitions. Complement of second has 13 states. [2021-12-16 10:02:34,745 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 [2021-12-16 10:02:34,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-16 10:02:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-12-16 10:02:34,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 5 letters. [2021-12-16 10:02:34,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:34,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-16 10:02:34,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:34,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 10 letters. [2021-12-16 10:02:34,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:34,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-12-16 10:02:34,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:34,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 29 transitions. [2021-12-16 10:02:34,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 10:02:34,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 10:02:34,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2021-12-16 10:02:34,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 10:02:34,749 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-16 10:02:34,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2021-12-16 10:02:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-12-16 10:02:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-12-16 10:02:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-16 10:02:34,751 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-16 10:02:34,751 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-16 10:02:34,751 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 10:02:34,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2021-12-16 10:02:34,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:34,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 10:02:34,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 10:02:34,752 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 10:02:34,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-16 10:02:34,753 INFO L791 eck$LassoCheckResult]: Stem: 243#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); 244#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;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 241#L31 call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 253#additionENTRY ~m := #in~m;~n := #in~n; 245#L16 assume !(0 == ~n); 246#L19 assume !(~n > 0); 250#L22 assume ~n < 0; 239#L23 call #t~ret5 := addition(~m - 1, 1 + ~n);< 240#additionENTRY ~m := #in~m;~n := #in~n; 247#L16 assume !(0 == ~n); 249#L19 assume ~n > 0; 237#L20 [2021-12-16 10:02:34,753 INFO L793 eck$LassoCheckResult]: Loop: 237#L20 call #t~ret4 := addition(1 + ~m, ~n - 1);< 238#additionENTRY ~m := #in~m;~n := #in~n; 252#L16 assume !(0 == ~n); 257#L19 assume ~n > 0; 237#L20 [2021-12-16 10:02:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:34,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1017357234, now seen corresponding path program 1 times [2021-12-16 10:02:34,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:34,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637450152] [2021-12-16 10:02:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:34,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:34,779 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 [2021-12-16 10:02:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:34,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 10:02:34,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637450152] [2021-12-16 10:02:34,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637450152] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 10:02:34,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 10:02:34,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 10:02:34,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080949522] [2021-12-16 10:02:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 10:02:34,812 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 10:02:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1981232, now seen corresponding path program 2 times [2021-12-16 10:02:34,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 10:02:34,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663979925] [2021-12-16 10:02:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 10:02:34,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 10:02:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:34,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 10:02:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 10:02:34,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 10:02:34,900 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:34,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:34,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:34,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:34,901 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-16 10:02:34,901 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,901 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:34,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:34,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2021-12-16 10:02:34,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:34,901 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:34,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:34,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:34,955 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-16 10:02:34,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,956 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-16 10:02:34,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:34,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:34,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-16 10:02:34,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-16 10:02:34,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:34,997 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-16 10:02:34,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-16 10:02:34,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:34,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:35,139 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:35,139 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=4, addition_~m=4} Honda state: {addition_#in~m=4, addition_~m=4} Generalized eigenvectors: [{addition_#in~m=1, addition_~m=1}, {addition_#in~m=0, addition_~m=0}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 14, 4] Nus: [0, 1] [2021-12-16 10:02:35,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:35,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:35,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:35,156 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-16 10:02:35,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-16 10:02:35,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:35,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:35,165 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:35,165 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:35,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:35,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:35,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:35,181 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-16 10:02:35,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-16 10:02:35,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:35,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:35,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:35,190 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret5=0} Honda state: {addition_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:35,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:35,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:35,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:35,206 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-12-16 10:02:35,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-16 10:02:35,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:35,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:35,218 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-16 10:02:35,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-16 10:02:35,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:35,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:35,236 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-12-16 10:02:35,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-16 10:02:35,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-16 10:02:35,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:35,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:35,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:35,267 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-12-16 10:02:35,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-16 10:02:35,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-16 10:02:35,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-16 10:02:36,256 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-16 10:02:36,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:36,260 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 10:02:36,260 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 10:02:36,260 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 10:02:36,260 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 10:02:36,260 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 10:02:36,260 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 10:02:36,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 10:02:36,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2021-12-16 10:02:36,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 10:02:36,260 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 10:02:36,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:36,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:36,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:36,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:36,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 10:02:36,326 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 10:02:36,326 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 10:02:36,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:36,329 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-12-16 10:02:36,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-16 10:02:36,331 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 [2021-12-16 10:02:36,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:36,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:36,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:36,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:36,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:36,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:36,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:36,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:36,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:36,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:36,360 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-12-16 10:02:36,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-16 10:02:36,362 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 [2021-12-16 10:02:36,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:36,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:36,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:36,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:36,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:36,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:36,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:36,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:36,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:36,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:36,387 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-16 10:02:36,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-16 10:02:36,391 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 [2021-12-16 10:02:36,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:36,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:36,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:36,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:36,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:36,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:36,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:36,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 10:02:36,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-16 10:02:36,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:36,421 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-12-16 10:02:36,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-16 10:02:36,424 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 [2021-12-16 10:02:36,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 10:02:36,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 10:02:36,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 10:02:36,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 10:02:36,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 10:02:36,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 10:02:36,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 10:02:36,443 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 10:02:36,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 10:02:36,447 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-16 10:02:36,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 10:02:36,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 10:02:36,452 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-12-16 10:02:36,456 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 10:02:36,456 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 10:02:36,457 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 10:02:36,457 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2021-12-16 10:02:36,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-16 10:02:36,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-16 10:02:36,482 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-16 10:02:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 10:02:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:36,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 10:02:36,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 10:02:36,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 10:02:36,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 10:02:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 10:02:36,581 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 [2021-12-16 10:02:36,581 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:36,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 63 transitions. Complement of second has 9 states. [2021-12-16 10:02:36,610 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 [2021-12-16 10:02:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-16 10:02:36,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-16 10:02:36,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:36,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-12-16 10:02:36,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:36,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 8 letters. [2021-12-16 10:02:36,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 10:02:36,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 63 transitions. [2021-12-16 10:02:36,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 10:02:36,615 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 55 transitions. [2021-12-16 10:02:36,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-12-16 10:02:36,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-16 10:02:36,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2021-12-16 10:02:36,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 10:02:36,616 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-12-16 10:02:36,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2021-12-16 10:02:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2021-12-16 10:02:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 10:02:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2021-12-16 10:02:36,619 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-12-16 10:02:36,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 10:02:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 10:02:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 10:02:36,622 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-16 10:02:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 10:02:36,651 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-12-16 10:02:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 10:02:36,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 31 transitions. [2021-12-16 10:02:36,653 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 10:02:36,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-12-16 10:02:36,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 10:02:36,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 10:02:36,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 10:02:36,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 10:02:36,654 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:02:36,654 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:02:36,654 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 10:02:36,654 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 10:02:36,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 10:02:36,654 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 10:02:36,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 10:02:36,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 10:02:36 BoogieIcfgContainer [2021-12-16 10:02:36,660 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 10:02:36,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 10:02:36,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 10:02:36,668 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 10:02:36,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:02:24" (3/4) ... [2021-12-16 10:02:36,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 10:02:36,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 10:02:36,672 INFO L158 Benchmark]: Toolchain (without parser) took 12689.45ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 83.2MB in the end (delta: -28.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:02:36,672 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:02:36,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.69ms. Allocated memory is still 88.1MB. Free memory was 54.6MB in the beginning and 64.7MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:02:36,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.24ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 10:02:36,672 INFO L158 Benchmark]: Boogie Preprocessor took 13.39ms. Allocated memory is still 88.1MB. Free memory was 63.1MB in the beginning and 62.4MB in the end (delta: 705.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:02:36,673 INFO L158 Benchmark]: RCFGBuilder took 181.25ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 53.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 10:02:36,673 INFO L158 Benchmark]: BuchiAutomizer took 12295.69ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 53.7MB in the beginning and 83.2MB in the end (delta: -29.5MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-12-16 10:02:36,673 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 109.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 10:02:36,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2021-12-16 10:02:36,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.69ms. Allocated memory is still 88.1MB. Free memory was 54.6MB in the beginning and 64.7MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.24ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.39ms. Allocated memory is still 88.1MB. Free memory was 63.1MB in the beginning and 62.4MB in the end (delta: 705.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 181.25ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 53.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12295.69ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 53.7MB in the beginning and 83.2MB in the end (delta: -29.5MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 109.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 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. One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 11.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 37 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf92 smp91 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 9.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 10:02:36,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE