./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Nested.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5317dae 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/termination-restricted-15/java_Nested.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:34:33,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:34:33,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:34:33,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:34:33,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:34:33,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:34:33,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:34:33,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:34:33,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:34:33,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:34:33,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:34:33,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:34:33,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:34:33,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:34:33,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:34:33,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:34:33,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:34:33,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:34:33,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:34:33,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:34:33,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:34:33,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:34:33,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:34:33,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:34:33,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:34:33,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:34:33,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:34:33,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:34:33,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:34:33,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:34:33,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:34:33,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:34:33,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:34:33,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:34:33,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:34:33,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:34:33,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:34:33,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:34:33,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:34:33,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:34:33,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:34:33,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:34:33,376 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:34:33,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:34:33,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:34:33,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:34:33,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:34:33,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:34:33,378 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:34:33,378 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:34:33,378 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:34:33,379 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:34:33,379 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:34:33,379 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:34:33,379 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:34:33,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:34:33,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:34:33,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:34:33,381 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:34:33,381 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:34:33,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:34:33,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:34:33,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:34:33,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:34:33,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:34:33,383 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:34:33,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f3c7109e3632c85dc9002b2a2bde96ba9bdc501efcd49505c298845bf1ea677 [2023-02-16 04:34:33,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:34:33,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:34:33,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:34:33,565 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:34:33,565 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:34:33,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Nested.c [2023-02-16 04:34:34,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:34:34,719 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:34:34,719 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Nested.c [2023-02-16 04:34:34,723 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a315e5f0/09b789ae3836404eadde4c50e5ea0f2c/FLAGd6b24e5be [2023-02-16 04:34:34,736 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a315e5f0/09b789ae3836404eadde4c50e5ea0f2c [2023-02-16 04:34:34,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:34:34,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:34:34,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:34:34,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:34:34,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:34:34,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258e89bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34, skipping insertion in model container [2023-02-16 04:34:34,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:34:34,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:34:34,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:34:34,848 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:34:34,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:34:34,865 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:34:34,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34 WrapperNode [2023-02-16 04:34:34,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:34:34,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:34:34,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:34:34,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:34:34,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,888 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-02-16 04:34:34,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:34:34,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:34:34,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:34:34,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:34:34,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:34:34,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:34:34,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:34:34,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:34:34,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (1/1) ... [2023-02-16 04:34:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:34,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:34,926 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) [2023-02-16 04:34:34,949 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 [2023-02-16 04:34:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:34:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:34:35,012 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:34:35,014 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:34:35,064 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:34:35,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:34:35,068 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:34:35,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:34:35 BoogieIcfgContainer [2023-02-16 04:34:35,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:34:35,070 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:34:35,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:34:35,073 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:34:35,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:34:35,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:34:34" (1/3) ... [2023-02-16 04:34:35,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@130e484f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:34:35, skipping insertion in model container [2023-02-16 04:34:35,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:34:35,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:34:34" (2/3) ... [2023-02-16 04:34:35,075 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@130e484f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:34:35, skipping insertion in model container [2023-02-16 04:34:35,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:34:35,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:34:35" (3/3) ... [2023-02-16 04:34:35,076 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_Nested.c [2023-02-16 04:34:35,116 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:34:35,119 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:34:35,119 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:34:35,119 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:34:35,120 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:34:35,120 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:34:35,120 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:34:35,120 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:34:35,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:34:35,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:35,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:35,140 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:34:35,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:34:35,140 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:34:35,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:34:35,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:35,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:35,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:34:35,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:34:35,148 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 4#L10-2true [2023-02-16 04:34:35,149 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 2#L12-2true assume !(main_~j~0#1 < 12); 5#L12-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L10-2true [2023-02-16 04:34:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:34:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310673075] [2023-02-16 04:34:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-02-16 04:34:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867459040] [2023-02-16 04:34:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:34:35,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867459040] [2023-02-16 04:34:35,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867459040] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:34:35,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:34:35,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:34:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543312969] [2023-02-16 04:34:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:34:35,314 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:34:35,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:34:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:34:35,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:34:35,366 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:34:35,376 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-02-16 04:34:35,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-02-16 04:34:35,378 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:34:35,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2023-02-16 04:34:35,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-16 04:34:35,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-16 04:34:35,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-02-16 04:34:35,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:34:35,398 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-02-16 04:34:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-02-16 04:34:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-02-16 04:34:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-02-16 04:34:35,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-02-16 04:34:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:34:35,418 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-02-16 04:34:35,419 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:34:35,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-02-16 04:34:35,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:34:35,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:35,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:35,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:34:35,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-16 04:34:35,420 INFO L748 eck$LassoCheckResult]: Stem: 32#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 30#L10-2 [2023-02-16 04:34:35,420 INFO L750 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 28#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 12); 31#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 30#L10-2 [2023-02-16 04:34:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-16 04:34:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213385856] [2023-02-16 04:34:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:35,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2023-02-16 04:34:35,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784938080] [2023-02-16 04:34:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:34:35,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784938080] [2023-02-16 04:34:35,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784938080] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:34:35,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352463188] [2023-02-16 04:34:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:34:35,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:35,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:34:35,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 04:34:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:35,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:34:35,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:34:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352463188] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:34:35,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:34:35,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-16 04:34:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511780324] [2023-02-16 04:34:35,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:34:35,595 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:34:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:34:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:34:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:34:35,596 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:34:35,608 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-16 04:34:35,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-16 04:34:35,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:34:35,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2023-02-16 04:34:35,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:34:35,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:34:35,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-02-16 04:34:35,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:34:35,609 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-16 04:34:35,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-02-16 04:34:35,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-16 04:34:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-16 04:34:35,611 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-16 04:34:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:34:35,612 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-16 04:34:35,612 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:34:35,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2023-02-16 04:34:35,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:34:35,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:35,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:35,613 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:34:35,613 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1] [2023-02-16 04:34:35,613 INFO L748 eck$LassoCheckResult]: Stem: 74#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 72#L10-2 [2023-02-16 04:34:35,613 INFO L750 eck$LassoCheckResult]: Loop: 72#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 70#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 71#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 78#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 77#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 76#L12-2 assume !(main_~j~0#1 < 12); 73#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 72#L10-2 [2023-02-16 04:34:35,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-02-16 04:34:35,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073374593] [2023-02-16 04:34:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -787882000, now seen corresponding path program 2 times [2023-02-16 04:34:35,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255719633] [2023-02-16 04:34:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:34:35,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255719633] [2023-02-16 04:34:35,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255719633] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:34:35,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717551360] [2023-02-16 04:34:35,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:34:35,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:34:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:35,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:34:35,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 04:34:35,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:34:35,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:34:35,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:34:35,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:35,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:34:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:35,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717551360] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:34:35,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:34:35,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-02-16 04:34:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431089870] [2023-02-16 04:34:35,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:34:35,867 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:34:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:34:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 04:34:35,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-02-16 04:34:35,869 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:34:35,887 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-02-16 04:34:35,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2023-02-16 04:34:35,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-16 04:34:35,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 15 transitions. [2023-02-16 04:34:35,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-16 04:34:35,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-02-16 04:34:35,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2023-02-16 04:34:35,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:34:35,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-02-16 04:34:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2023-02-16 04:34:35,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-16 04:34:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-02-16 04:34:35,893 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-02-16 04:34:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 04:34:35,895 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-02-16 04:34:35,896 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:34:35,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 15 transitions. [2023-02-16 04:34:35,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-16 04:34:35,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:35,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:35,897 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:34:35,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 1, 1, 1] [2023-02-16 04:34:35,897 INFO L748 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 145#L10-2 [2023-02-16 04:34:35,897 INFO L750 eck$LassoCheckResult]: Loop: 145#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 143#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 144#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 156#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 155#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 154#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 153#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 152#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 151#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 150#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 149#L12-2 assume !(main_~j~0#1 < 12); 146#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 145#L10-2 [2023-02-16 04:34:35,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,900 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-02-16 04:34:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723560948] [2023-02-16 04:34:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:35,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash -219093776, now seen corresponding path program 3 times [2023-02-16 04:34:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245357770] [2023-02-16 04:34:35,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:35,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:35,942 INFO L85 PathProgramCache]: Analyzing trace with hash 995055026, now seen corresponding path program 1 times [2023-02-16 04:34:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:35,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142043957] [2023-02-16 04:34:35,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:35,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:36,152 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:36,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:36,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:36,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:36,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:34:36,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:36,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:36,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration4_Loop [2023-02-16 04:34:36,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:36,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:36,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,180 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:36,226 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:34:36,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,243 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) [2023-02-16 04:34:36,244 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 [2023-02-16 04:34:36,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:36,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,272 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:36,272 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:34:36,277 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 [2023-02-16 04:34:36,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,278 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) [2023-02-16 04:34:36,280 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 [2023-02-16 04:34:36,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:36,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:36,309 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:34:36,329 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 [2023-02-16 04:34:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,331 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) [2023-02-16 04:34:36,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:36,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,356 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 [2023-02-16 04:34:36,367 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 [2023-02-16 04:34:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,369 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) [2023-02-16 04:34:36,385 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 [2023-02-16 04:34:36,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:34:36,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,429 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:36,429 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=-15}, {ULTIMATE.start_main_~c~0#1=12}, {ULTIMATE.start_main_~c~0#1=12}] Lambdas: [1, 0, 1] Nus: [0, 1] [2023-02-16 04:34:36,435 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 [2023-02-16 04:34:36,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,436 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) [2023-02-16 04:34:36,444 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 [2023-02-16 04:34:36,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:36,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:36,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=12} Honda state: {ULTIMATE.start_main_~j~0#1=12} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:34:36,471 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 [2023-02-16 04:34:36,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,473 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) [2023-02-16 04:34:36,475 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 [2023-02-16 04:34:36,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:36,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,502 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 [2023-02-16 04:34:36,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,503 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) [2023-02-16 04:34:36,505 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 [2023-02-16 04:34:36,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:34:36,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:36,538 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:34:36,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-16 04:34:36,544 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:36,544 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:36,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:36,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:36,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:34:36,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:36,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:36,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration4_Loop [2023-02-16 04:34:36,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:36,544 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:36,545 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,549 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,552 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:36,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:36,608 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:34:36,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,616 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) [2023-02-16 04:34:36,622 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 [2023-02-16 04:34:36,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:36,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:34:36,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:36,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:36,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:36,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:34:36,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:34:36,634 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 [2023-02-16 04:34:36,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:34:36,647 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 [2023-02-16 04:34:36,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,652 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) [2023-02-16 04:34:36,655 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 [2023-02-16 04:34:36,655 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 [2023-02-16 04:34:36,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:36,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:36,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:36,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:36,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:34:36,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:34:36,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:34:36,678 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 [2023-02-16 04:34:36,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,680 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) [2023-02-16 04:34:36,683 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 [2023-02-16 04:34:36,684 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 [2023-02-16 04:34:36,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:36,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:34:36,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:36,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:36,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:36,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:34:36,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:34:36,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:34:36,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:36,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,710 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) [2023-02-16 04:34:36,711 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 [2023-02-16 04:34:36,712 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 [2023-02-16 04:34:36,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:36,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:36,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:36,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:36,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:34:36,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:34:36,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:34:36,733 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 [2023-02-16 04:34:36,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,734 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) [2023-02-16 04:34:36,736 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 [2023-02-16 04:34:36,739 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 [2023-02-16 04:34:36,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:36,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:34:36,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:36,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:36,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:36,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:34:36,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:34:36,767 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:34:36,770 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:34:36,770 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:34:36,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:36,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:36,784 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) [2023-02-16 04:34:36,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:34:36,794 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:34:36,794 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:34:36,795 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2023-02-16 04:34:36,800 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 [2023-02-16 04:34:36,804 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 [2023-02-16 04:34:36,807 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:34:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:36,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:34:36,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:36,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:34:36,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-16 04:34:36,968 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-16 04:34:36,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,032 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 15 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 29 transitions. Complement of second has 4 states. [2023-02-16 04:34:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:34:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-16 04:34:37,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 12 letters. [2023-02-16 04:34:37,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 12 letters. [2023-02-16 04:34:37,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 24 letters. [2023-02-16 04:34:37,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,036 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2023-02-16 04:34:37,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:34:37,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 28 transitions. [2023-02-16 04:34:37,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-16 04:34:37,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-16 04:34:37,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2023-02-16 04:34:37,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:34:37,037 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-16 04:34:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2023-02-16 04:34:37,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2023-02-16 04:34:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2023-02-16 04:34:37,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-02-16 04:34:37,046 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2023-02-16 04:34:37,046 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-16 04:34:37,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2023-02-16 04:34:37,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:34:37,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:37,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:37,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-16 04:34:37,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:34:37,047 INFO L748 eck$LassoCheckResult]: Stem: 250#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 251#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 247#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 244#L12-2 [2023-02-16 04:34:37,047 INFO L750 eck$LassoCheckResult]: Loop: 244#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 244#L12-2 [2023-02-16 04:34:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-16 04:34:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769108475] [2023-02-16 04:34:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-16 04:34:37,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577714026] [2023-02-16 04:34:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,083 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-02-16 04:34:37,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581075063] [2023-02-16 04:34:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,120 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:37,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:37,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:37,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:37,121 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:34:37,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:37,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:37,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration5_Loop [2023-02-16 04:34:37,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:37,121 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:37,122 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,171 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:37,172 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:34:37,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,196 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) [2023-02-16 04:34:37,227 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 [2023-02-16 04:34:37,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:37,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,249 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:37,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:34:37,255 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 [2023-02-16 04:34:37,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,257 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) [2023-02-16 04:34:37,259 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 [2023-02-16 04:34:37,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:37,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:37,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,324 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) [2023-02-16 04:34:37,327 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 [2023-02-16 04:34:37,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:34:37,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,352 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:34:37,357 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 [2023-02-16 04:34:37,358 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:37,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:37,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:37,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:37,358 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:34:37,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:37,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:37,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration5_Loop [2023-02-16 04:34:37,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:37,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:37,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,367 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,427 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:37,427 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:34:37,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,428 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:34:37,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-16 04:34:37,460 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 [2023-02-16 04:34:37,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:37,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:37,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:37,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:37,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:34:37,471 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:34:37,476 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 [2023-02-16 04:34:37,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:34:37,493 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 [2023-02-16 04:34:37,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,495 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) [2023-02-16 04:34:37,508 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 [2023-02-16 04:34:37,551 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 [2023-02-16 04:34:37,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:37,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:34:37,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:37,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:37,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:37,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:34:37,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:34:37,584 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:34:37,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:34:37,587 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:34:37,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,589 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) [2023-02-16 04:34:37,610 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 [2023-02-16 04:34:37,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:34:37,611 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:34:37,611 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:34:37,611 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 23 Supporting invariants [] [2023-02-16 04:34:37,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-02-16 04:34:37,616 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:34:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:37,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:34:37,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:37,641 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:34:37,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:37,642 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:34:37,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,660 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 37 transitions. Complement of second has 5 states. [2023-02-16 04:34:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:34:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-16 04:34:37,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-16 04:34:37,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-16 04:34:37,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-16 04:34:37,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:37,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2023-02-16 04:34:37,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:34:37,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 32 transitions. [2023-02-16 04:34:37,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-16 04:34:37,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-16 04:34:37,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-02-16 04:34:37,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:34:37,671 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-02-16 04:34:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-02-16 04:34:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2023-02-16 04:34:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-02-16 04:34:37,677 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-02-16 04:34:37,677 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-02-16 04:34:37,677 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-16 04:34:37,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2023-02-16 04:34:37,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:34:37,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:34:37,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:34:37,680 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 2, 1, 1, 1, 1] [2023-02-16 04:34:37,686 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:34:37,687 INFO L748 eck$LassoCheckResult]: Stem: 329#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 330#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 326#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 324#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 325#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 338#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 337#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 336#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 335#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 334#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 333#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 332#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 331#L12-2 assume !(main_~j~0#1 < 12); 328#L12-3 main_~i~0#1 := 1 + main_~i~0#1; 327#L10-2 assume !!(main_~i~0#1 < 10);main_~j~0#1 := 3; 323#L12-2 [2023-02-16 04:34:37,687 INFO L750 eck$LassoCheckResult]: Loop: 323#L12-2 assume !!(main_~j~0#1 < 12);main_~j~0#1 := main_~j~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 2 + main_~j~0#1; 323#L12-2 [2023-02-16 04:34:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,687 INFO L85 PathProgramCache]: Analyzing trace with hash 781934745, now seen corresponding path program 2 times [2023-02-16 04:34:37,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914559254] [2023-02-16 04:34:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-02-16 04:34:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857291149] [2023-02-16 04:34:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:37,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1529826661, now seen corresponding path program 3 times [2023-02-16 04:34:37,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:34:37,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948842369] [2023-02-16 04:34:37,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:34:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:34:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:34:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:34:37,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:34:37,776 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:37,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:37,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:37,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:37,777 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:34:37,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:37,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:37,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration6_Loop [2023-02-16 04:34:37,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:37,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:37,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,781 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,787 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:37,814 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:37,814 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:34:37,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,815 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) [2023-02-16 04:34:37,819 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 [2023-02-16 04:34:37,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:37,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:34:37,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:34:37,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:37,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,912 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) [2023-02-16 04:34:37,914 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 [2023-02-16 04:34:37,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:34:37,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:37,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:37,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:37,948 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) [2023-02-16 04:34:37,950 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 [2023-02-16 04:34:37,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:34:37,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:34:37,986 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:34:37,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:37,999 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:34:37,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:34:38,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:34:38,000 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:34:38,000 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:34:38,000 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:38,000 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:34:38,000 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:34:38,000 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Nested.c_Iteration6_Loop [2023-02-16 04:34:38,000 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:34:38,000 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:34:38,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:38,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:38,007 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:38,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:34:38,047 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:34:38,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:34:38,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:38,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:38,090 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) [2023-02-16 04:34:38,092 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 [2023-02-16 04:34:38,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:34:38,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:34:38,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:34:38,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:34:38,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:34:38,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:34:38,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:34:38,102 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 [2023-02-16 04:34:38,110 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:34:38,112 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:34:38,112 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:34:38,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:34:38,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:34:38,115 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) [2023-02-16 04:34:38,116 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 [2023-02-16 04:34:38,116 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:34:38,116 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:34:38,116 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:34:38,117 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 23 Supporting invariants [] [2023-02-16 04:34:38,121 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 [2023-02-16 04:34:38,121 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:34:38,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,163 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:38,165 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:34:38,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,177 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 5 states. [2023-02-16 04:34:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:34:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-16 04:34:38,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 15 letters. Loop has 1 letters. [2023-02-16 04:34:38,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:38,180 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:34:38,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,221 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:38,222 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:34:38,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 5 states. [2023-02-16 04:34:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:34:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-16 04:34:38,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 15 letters. Loop has 1 letters. [2023-02-16 04:34:38,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:38,235 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:34:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:34:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:34:38,275 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:34:38,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:34:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:34:38,275 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:34:38,276 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 21 transitions. Complement of second has 4 states. [2023-02-16 04:34:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:34:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:34:38,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-16 04:34:38,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 15 letters. Loop has 1 letters. [2023-02-16 04:34:38,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:38,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 16 letters. Loop has 1 letters. [2023-02-16 04:34:38,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:38,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 15 letters. Loop has 2 letters. [2023-02-16 04:34:38,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:34:38,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2023-02-16 04:34:38,291 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:34:38,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2023-02-16 04:34:38,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:34:38,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:34:38,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:34:38,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:34:38,291 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:34:38,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:34:38,291 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:34:38,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-16 04:34:38,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:34:38,292 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:34:38,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:34:38,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:34:38 BoogieIcfgContainer [2023-02-16 04:34:38,297 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:34:38,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:34:38,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:34:38,298 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:34:38,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:34:35" (3/4) ... [2023-02-16 04:34:38,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:34:38,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:34:38,300 INFO L158 Benchmark]: Toolchain (without parser) took 3561.93ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 110.2MB in the beginning and 129.6MB in the end (delta: -19.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-02-16 04:34:38,302 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:34:38,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 126.24ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 100.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:34:38,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.98ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:34:38,304 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 157.3MB. Free memory was 99.7MB in the beginning and 98.8MB in the end (delta: 876.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:34:38,304 INFO L158 Benchmark]: RCFGBuilder took 165.97ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 90.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:34:38,307 INFO L158 Benchmark]: BuchiAutomizer took 3226.77ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 90.0MB in the beginning and 129.6MB in the end (delta: -39.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-02-16 04:34:38,307 INFO L158 Benchmark]: Witness Printer took 2.24ms. Allocated memory is still 209.7MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:34:38,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 126.24ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 100.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.98ms. Allocated memory is still 157.3MB. Free memory was 100.9MB in the beginning and 99.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 157.3MB. Free memory was 99.7MB in the beginning and 98.8MB in the end (delta: 876.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.97ms. Allocated memory is still 157.3MB. Free memory was 98.8MB in the beginning and 90.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3226.77ms. Allocated memory was 157.3MB in the beginning and 209.7MB in the end (delta: 52.4MB). Free memory was 90.0MB in the beginning and 129.6MB in the end (delta: -39.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 2.24ms. Allocated memory is still 209.7MB. Free memory is still 129.6MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 19 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 7 iterations. TraceHistogramMax:9. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 45/45 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 46 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax171 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:34:38,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-16 04:34:38,520 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 [2023-02-16 04:34:38,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:38,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:34:39,129 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