./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/nested9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/nested9.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 04:00:40,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 04:00:40,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 04:00:40,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 04:00:40,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 04:00:40,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 04:00:40,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 04:00:40,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 04:00:40,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 04:00:40,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 04:00:40,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 04:00:40,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 04:00:40,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 04:00:40,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 04:00:40,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 04:00:40,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 04:00:40,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 04:00:40,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 04:00:40,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 04:00:40,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 04:00:40,220 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 04:00:40,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 04:00:40,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 04:00:40,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 04:00:40,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 04:00:40,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 04:00:40,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 04:00:40,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 04:00:40,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 04:00:40,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 04:00:40,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 04:00:40,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 04:00:40,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 04:00:40,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 04:00:40,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 04:00:40,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 04:00:40,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 04:00:40,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 04:00:40,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 04:00:40,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 04:00:40,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 04:00:40,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 04:00:40,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 04:00:40,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 04:00:40,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 04:00:40,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 04:00:40,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 04:00:40,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 04:00:40,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 04:00:40,266 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 04:00:40,266 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 04:00:40,266 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 04:00:40,267 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 04:00:40,267 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 04:00:40,267 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 04:00:40,268 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 04:00:40,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 04:00:40,268 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 04:00:40,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 04:00:40,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 04:00:40,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 04:00:40,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 04:00:40,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 04:00:40,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 04:00:40,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 04:00:40,269 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 04:00:40,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 04:00:40,270 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 04:00:40,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 04:00:40,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 04:00:40,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 04:00:40,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 04:00:40,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 04:00:40,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 04:00:40,272 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 04:00:40,272 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a [2022-07-13 04:00:40,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 04:00:40,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 04:00:40,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 04:00:40,470 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 04:00:40,470 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 04:00:40,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/nested9.i [2022-07-13 04:00:40,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7297eb6a3/d44fd84cbf4e4fd3a57420a41370d288/FLAG3ce889b6d [2022-07-13 04:00:40,865 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 04:00:40,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested9.i [2022-07-13 04:00:40,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7297eb6a3/d44fd84cbf4e4fd3a57420a41370d288/FLAG3ce889b6d [2022-07-13 04:00:40,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7297eb6a3/d44fd84cbf4e4fd3a57420a41370d288 [2022-07-13 04:00:40,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 04:00:40,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 04:00:40,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 04:00:40,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 04:00:40,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 04:00:40,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:00:40" (1/1) ... [2022-07-13 04:00:40,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb27ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:40, skipping insertion in model container [2022-07-13 04:00:40,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:00:40" (1/1) ... [2022-07-13 04:00:40,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 04:00:40,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 04:00:41,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested9.i[893,906] [2022-07-13 04:00:41,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:00:41,038 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 04:00:41,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested9.i[893,906] [2022-07-13 04:00:41,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:00:41,066 INFO L208 MainTranslator]: Completed translation [2022-07-13 04:00:41,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41 WrapperNode [2022-07-13 04:00:41,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 04:00:41,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 04:00:41,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 04:00:41,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 04:00:41,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,091 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-07-13 04:00:41,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 04:00:41,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 04:00:41,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 04:00:41,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 04:00:41,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 04:00:41,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 04:00:41,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 04:00:41,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 04:00:41,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (1/1) ... [2022-07-13 04:00:41,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:41,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:41,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 04:00:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 04:00:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 04:00:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 04:00:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 04:00:41,197 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 04:00:41,198 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 04:00:41,294 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 04:00:41,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 04:00:41,298 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 04:00:41,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:00:41 BoogieIcfgContainer [2022-07-13 04:00:41,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 04:00:41,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 04:00:41,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 04:00:41,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 04:00:41,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:00:41,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 04:00:40" (1/3) ... [2022-07-13 04:00:41,321 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa32b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:00:41, skipping insertion in model container [2022-07-13 04:00:41,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:00:41,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:00:41" (2/3) ... [2022-07-13 04:00:41,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fa32b37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:00:41, skipping insertion in model container [2022-07-13 04:00:41,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:00:41,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:00:41" (3/3) ... [2022-07-13 04:00:41,326 INFO L354 chiAutomizerObserver]: Analyzing ICFG nested9.i [2022-07-13 04:00:41,363 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 04:00:41,363 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 04:00:41,363 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 04:00:41,364 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 04:00:41,364 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 04:00:41,364 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 04:00:41,364 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 04:00:41,364 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 04:00:41,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:41,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 04:00:41,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:41,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:41,384 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:41,384 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 04:00:41,384 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 04:00:41,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:41,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 04:00:41,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:41,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:41,386 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:41,386 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 04:00:41,390 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4#L30true assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 7#L31true assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 9#L32true assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 6#L33true assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 5#L33-1true main_~i~0#1 := 0; 21#L34-3true [2022-07-13 04:00:41,390 INFO L754 eck$LassoCheckResult]: Loop: 21#L34-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 12#L35-3true assume !true; 11#L34-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 21#L34-3true [2022-07-13 04:00:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907757, now seen corresponding path program 1 times [2022-07-13 04:00:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:41,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057096421] [2022-07-13 04:00:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:41,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:41,492 INFO L85 PathProgramCache]: Analyzing trace with hash 62657, now seen corresponding path program 1 times [2022-07-13 04:00:41,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:41,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15229871] [2022-07-13 04:00:41,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:41,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:41,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:41,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15229871] [2022-07-13 04:00:41,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15229871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:00:41,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:00:41,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 04:00:41,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299993190] [2022-07-13 04:00:41,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:00:41,531 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:00:41,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:41,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 04:00:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 04:00:41,554 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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 2 states, 2 states have (on average 1.5) 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) [2022-07-13 04:00:41,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:41,558 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-07-13 04:00:41,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 04:00:41,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2022-07-13 04:00:41,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 04:00:41,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 17 transitions. [2022-07-13 04:00:41,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-07-13 04:00:41,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-13 04:00:41,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2022-07-13 04:00:41,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:00:41,576 INFO L369 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-13 04:00:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2022-07-13 04:00:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-13 04:00:41,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-07-13 04:00:41,600 INFO L392 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-13 04:00:41,600 INFO L374 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-13 04:00:41,600 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 04:00:41,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2022-07-13 04:00:41,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 04:00:41,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:41,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:41,601 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:41,601 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 04:00:41,601 INFO L752 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 49#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 50#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 51#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 55#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 54#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 52#L33-1 main_~i~0#1 := 0; 53#L34-3 [2022-07-13 04:00:41,601 INFO L754 eck$LassoCheckResult]: Loop: 53#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 60#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 59#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 53#L34-3 [2022-07-13 04:00:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907757, now seen corresponding path program 2 times [2022-07-13 04:00:41,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:41,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020356721] [2022-07-13 04:00:41,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:41,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 61789, now seen corresponding path program 1 times [2022-07-13 04:00:41,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:41,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193686184] [2022-07-13 04:00:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,622 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash 763900017, now seen corresponding path program 1 times [2022-07-13 04:00:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:41,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004389767] [2022-07-13 04:00:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,636 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:41,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:41,694 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:41,695 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:41,695 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:41,695 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:41,695 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:41,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:41,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:41,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2022-07-13 04:00:41,696 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:41,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:41,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:41,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:41,762 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:41,762 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:41,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:41,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:41,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 04:00:41,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:41,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:41,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:41,779 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:41,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:41,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:41,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:41,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 04:00:41,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:41,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:41,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 04:00:41,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:41,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:41,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 04:00:41,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:41,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:41,993 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:41,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:41,997 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:41,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:41,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:41,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:41,997 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:41,998 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:41,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:41,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:41,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2022-07-13 04:00:41,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:41,998 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:42,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,057 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:42,061 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:42,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:42,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:42,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 04:00:42,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:42,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:42,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:42,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:42,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:42,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:42,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:42,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:42,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:42,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 04:00:42,095 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 04:00:42,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:42,098 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) [2022-07-13 04:00:42,099 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 [2022-07-13 04:00:42,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:42,145 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:42,146 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:42,146 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-13 04:00:42,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:42,179 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:42,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:42,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:42,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:42,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 04:00:42,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:42,298 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 04:00:42,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2022-07-13 04:00:42,368 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 40 states and 50 transitions. Complement of second has 8 states. [2022-07-13 04:00:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2022-07-13 04:00:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-07-13 04:00:42,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 04:00:42,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:42,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-13 04:00:42,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:42,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-13 04:00:42,373 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:42,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2022-07-13 04:00:42,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2022-07-13 04:00:42,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 48 transitions. [2022-07-13 04:00:42,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-07-13 04:00:42,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-07-13 04:00:42,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2022-07-13 04:00:42,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:42,381 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-07-13 04:00:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2022-07-13 04:00:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2022-07-13 04:00:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-07-13 04:00:42,388 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-13 04:00:42,388 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-13 04:00:42,388 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 04:00:42,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2022-07-13 04:00:42,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 04:00:42,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:42,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:42,389 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:42,389 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 04:00:42,389 INFO L752 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 162#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 163#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 164#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 168#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 167#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 165#L33-1 main_~i~0#1 := 0; 166#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 179#L35-3 [2022-07-13 04:00:42,389 INFO L754 eck$LassoCheckResult]: Loop: 179#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 169#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 171#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 185#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 175#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 176#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 179#L35-3 [2022-07-13 04:00:42,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:42,390 INFO L85 PathProgramCache]: Analyzing trace with hash 179565651, now seen corresponding path program 1 times [2022-07-13 04:00:42,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:42,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059727391] [2022-07-13 04:00:42,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:42,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:42,396 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:42,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:42,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2077096969, now seen corresponding path program 1 times [2022-07-13 04:00:42,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:42,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560537953] [2022-07-13 04:00:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:42,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:42,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -696653093, now seen corresponding path program 1 times [2022-07-13 04:00:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:42,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885939619] [2022-07-13 04:00:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:42,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:42,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885939619] [2022-07-13 04:00:42,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885939619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:00:42,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:00:42,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:00:42,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711559050] [2022-07-13 04:00:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:00:42,535 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:42,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:42,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:42,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:42,535 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:42,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:42,540 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:42,540 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2022-07-13 04:00:42,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:42,562 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:42,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,572 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 [2022-07-13 04:00:42,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,618 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:42,618 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:42,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:42,628 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) [2022-07-13 04:00:42,630 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 [2022-07-13 04:00:42,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:42,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:42,667 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 [2022-07-13 04:00:42,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:42,668 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) [2022-07-13 04:00:42,670 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 [2022-07-13 04:00:42,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:42,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:42,894 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:42,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-13 04:00:42,899 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:42,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:42,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:42,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:42,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:42,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:42,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:42,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2022-07-13 04:00:42,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:42,899 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:42,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:42,963 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:42,963 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:42,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:42,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:42,965 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) [2022-07-13 04:00:42,970 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 [2022-07-13 04:00:42,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:42,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:42,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:42,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:42,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:42,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:42,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:42,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:43,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:43,007 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 04:00:43,007 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 04:00:43,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,009 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) [2022-07-13 04:00:43,011 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 [2022-07-13 04:00:43,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:43,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:43,012 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:43,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-07-13 04:00:43,028 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 [2022-07-13 04:00:43,029 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:43,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:43,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:43,067 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 04:00:43,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:43,129 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 04:00:43,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:43,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 136 states and 169 transitions. Complement of second has 13 states. [2022-07-13 04:00:43,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:43,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2022-07-13 04:00:43,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 8 letters. Loop has 6 letters. [2022-07-13 04:00:43,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:43,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 14 letters. Loop has 6 letters. [2022-07-13 04:00:43,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:43,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 8 letters. Loop has 12 letters. [2022-07-13 04:00:43,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:43,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 169 transitions. [2022-07-13 04:00:43,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2022-07-13 04:00:43,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 115 states and 145 transitions. [2022-07-13 04:00:43,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2022-07-13 04:00:43,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-07-13 04:00:43,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 145 transitions. [2022-07-13 04:00:43,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:43,249 INFO L369 hiAutomatonCegarLoop]: Abstraction has 115 states and 145 transitions. [2022-07-13 04:00:43,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 145 transitions. [2022-07-13 04:00:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 81. [2022-07-13 04:00:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.308641975308642) internal successors, (106), 80 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2022-07-13 04:00:43,257 INFO L392 hiAutomatonCegarLoop]: Abstraction has 81 states and 106 transitions. [2022-07-13 04:00:43,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:43,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 04:00:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 04:00:43,260 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:43,271 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-07-13 04:00:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 04:00:43,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2022-07-13 04:00:43,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 04:00:43,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2022-07-13 04:00:43,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-13 04:00:43,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-13 04:00:43,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2022-07-13 04:00:43,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:43,273 INFO L369 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-07-13 04:00:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2022-07-13 04:00:43,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-07-13 04:00:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-13 04:00:43,274 INFO L392 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-13 04:00:43,274 INFO L374 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-13 04:00:43,274 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 04:00:43,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2022-07-13 04:00:43,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 04:00:43,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:43,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:43,275 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:43,275 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 04:00:43,275 INFO L752 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 520#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 521#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 522#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 526#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 525#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 523#L33-1 main_~i~0#1 := 0; 524#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 538#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 535#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 536#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 537#L35-3 [2022-07-13 04:00:43,276 INFO L754 eck$LassoCheckResult]: Loop: 537#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 527#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 529#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 543#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 533#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 534#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 537#L35-3 [2022-07-13 04:00:43,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 2 times [2022-07-13 04:00:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:43,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762095873] [2022-07-13 04:00:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:43,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:43,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:43,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:43,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2077096969, now seen corresponding path program 2 times [2022-07-13 04:00:43,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:43,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014574500] [2022-07-13 04:00:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:43,309 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:43,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:43,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:43,313 INFO L85 PathProgramCache]: Analyzing trace with hash -669865, now seen corresponding path program 2 times [2022-07-13 04:00:43,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:43,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006881863] [2022-07-13 04:00:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:43,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 04:00:43,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:43,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006881863] [2022-07-13 04:00:43,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006881863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:00:43,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:00:43,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:00:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95780124] [2022-07-13 04:00:43,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:00:43,365 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:43,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:43,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:43,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:43,365 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:43,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:43,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:43,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2022-07-13 04:00:43,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:43,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:43,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:43,407 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:43,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,412 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) [2022-07-13 04:00:43,413 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 [2022-07-13 04:00:43,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:43,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:43,440 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:43,440 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:43,456 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 [2022-07-13 04:00:43,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,458 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) [2022-07-13 04:00:43,459 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 [2022-07-13 04:00:43,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:43,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:43,485 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 [2022-07-13 04:00:43,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,486 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) [2022-07-13 04:00:43,487 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 [2022-07-13 04:00:43,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:43,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:43,707 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:43,711 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 [2022-07-13 04:00:43,711 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:43,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:43,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:43,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:43,712 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:43,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,712 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:43,712 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:43,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2022-07-13 04:00:43,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:43,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:43,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:43,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:43,772 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:43,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,774 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) [2022-07-13 04:00:43,775 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 [2022-07-13 04:00:43,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:43,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:43,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:43,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:43,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:43,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:43,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:43,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:43,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:43,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-13 04:00:43,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,806 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) [2022-07-13 04:00:43,807 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 [2022-07-13 04:00:43,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:43,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:43,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:43,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:43,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:43,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:43,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:43,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:43,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:43,842 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 04:00:43,842 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 04:00:43,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:43,843 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) [2022-07-13 04:00:43,844 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 [2022-07-13 04:00:43,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:43,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:43,845 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:43,845 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-13 04:00:43,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:43,861 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:43,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:43,896 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 [2022-07-13 04:00:43,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:43,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:43,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:43,937 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:43,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:44,003 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-07-13 04:00:44,003 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:44,092 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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 105 states and 134 transitions. Complement of second has 14 states. [2022-07-13 04:00:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:44,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:44,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 37 transitions. [2022-07-13 04:00:44,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 11 letters. Loop has 6 letters. [2022-07-13 04:00:44,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:44,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 17 letters. Loop has 6 letters. [2022-07-13 04:00:44,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:44,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 11 letters. Loop has 12 letters. [2022-07-13 04:00:44,095 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:44,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 134 transitions. [2022-07-13 04:00:44,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2022-07-13 04:00:44,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 103 states and 132 transitions. [2022-07-13 04:00:44,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-07-13 04:00:44,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-07-13 04:00:44,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 132 transitions. [2022-07-13 04:00:44,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:44,097 INFO L369 hiAutomatonCegarLoop]: Abstraction has 103 states and 132 transitions. [2022-07-13 04:00:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 132 transitions. [2022-07-13 04:00:44,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 65. [2022-07-13 04:00:44,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.323076923076923) internal successors, (86), 64 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2022-07-13 04:00:44,101 INFO L392 hiAutomatonCegarLoop]: Abstraction has 65 states and 86 transitions. [2022-07-13 04:00:44,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:44,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 04:00:44,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 04:00:44,101 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:44,117 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2022-07-13 04:00:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 04:00:44,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2022-07-13 04:00:44,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-07-13 04:00:44,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 31 states and 37 transitions. [2022-07-13 04:00:44,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-13 04:00:44,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-13 04:00:44,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2022-07-13 04:00:44,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:44,119 INFO L369 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-13 04:00:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2022-07-13 04:00:44,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 04:00:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-07-13 04:00:44,120 INFO L392 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-13 04:00:44,120 INFO L374 stractBuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-13 04:00:44,120 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 04:00:44,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2022-07-13 04:00:44,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-07-13 04:00:44,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:44,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:44,121 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:44,121 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:44,121 INFO L752 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 870#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 871#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 872#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 876#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 875#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 873#L33-1 main_~i~0#1 := 0; 874#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 886#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 887#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 899#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 885#L35-3 [2022-07-13 04:00:44,121 INFO L754 eck$LassoCheckResult]: Loop: 885#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 877#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 878#L18 assume !(0 == __VERIFIER_assert_~cond#1); 892#L18-2 assume { :end_inline___VERIFIER_assert } true; 888#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 889#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 894#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 895#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 881#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 882#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 885#L35-3 [2022-07-13 04:00:44,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 3 times [2022-07-13 04:00:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:44,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826684441] [2022-07-13 04:00:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:44,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1137044896, now seen corresponding path program 1 times [2022-07-13 04:00:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:44,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676066851] [2022-07-13 04:00:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:44,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1923390994, now seen corresponding path program 1 times [2022-07-13 04:00:44,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:44,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580908726] [2022-07-13 04:00:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,166 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:44,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:44,276 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:44,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:44,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:44,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:44,277 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:44,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:44,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:44,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2022-07-13 04:00:44,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:44,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:44,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,354 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:44,356 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:44,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,358 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) [2022-07-13 04:00:44,359 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 [2022-07-13 04:00:44,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:44,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,372 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:44,372 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:44,389 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 [2022-07-13 04:00:44,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,396 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) [2022-07-13 04:00:44,398 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 [2022-07-13 04:00:44,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:44,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,421 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:44,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:44,439 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 [2022-07-13 04:00:44,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,443 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) [2022-07-13 04:00:44,444 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 [2022-07-13 04:00:44,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:44,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:44,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:44,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-13 04:00:44,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,483 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) [2022-07-13 04:00:44,488 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 [2022-07-13 04:00:44,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:44,489 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:44,496 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:44,515 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 [2022-07-13 04:00:44,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,517 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) [2022-07-13 04:00:44,518 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 [2022-07-13 04:00:44,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:44,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:44,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,560 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) [2022-07-13 04:00:44,561 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 [2022-07-13 04:00:44,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:44,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:44,783 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:44,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-07-13 04:00:44,787 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:44,787 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:44,787 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:44,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:44,787 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:44,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,788 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:44,788 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:44,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2022-07-13 04:00:44,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:44,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:44,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:44,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:44,866 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:44,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,867 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) [2022-07-13 04:00:44,869 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 [2022-07-13 04:00:44,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:44,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:44,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:44,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:44,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:44,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:44,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:44,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:44,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:44,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 04:00:44,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,902 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) [2022-07-13 04:00:44,904 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 [2022-07-13 04:00:44,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:44,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:44,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:44,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:44,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:44,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:44,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:44,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:44,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:44,927 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 [2022-07-13 04:00:44,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,928 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) [2022-07-13 04:00:44,929 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 [2022-07-13 04:00:44,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:44,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:44,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:44,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:44,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:44,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:44,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:44,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:44,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:44,956 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 [2022-07-13 04:00:44,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,957 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) [2022-07-13 04:00:44,957 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 [2022-07-13 04:00:44,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:44,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:44,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:44,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:44,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:44,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:44,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:44,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:44,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:44,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:44,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:44,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:44,996 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) [2022-07-13 04:00:45,008 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 [2022-07-13 04:00:45,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:45,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:45,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:45,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:45,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:45,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:45,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:45,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:45,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:45,041 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 04:00:45,042 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 04:00:45,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,043 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,053 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:45,054 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:45,054 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:45,054 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 3 Supporting invariants [] [2022-07-13 04:00:45,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 04:00:45,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:45,075 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:45,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:45,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:45,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 04:00:45,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:45,185 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2022-07-13 04:00:45,186 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:45,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 137 states and 166 transitions. Complement of second has 18 states. [2022-07-13 04:00:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2022-07-13 04:00:45,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 11 letters. Loop has 10 letters. [2022-07-13 04:00:45,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:45,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 21 letters. Loop has 10 letters. [2022-07-13 04:00:45,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:45,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 11 letters. Loop has 20 letters. [2022-07-13 04:00:45,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:45,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 166 transitions. [2022-07-13 04:00:45,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2022-07-13 04:00:45,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 135 states and 164 transitions. [2022-07-13 04:00:45,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-07-13 04:00:45,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-07-13 04:00:45,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 164 transitions. [2022-07-13 04:00:45,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:45,307 INFO L369 hiAutomatonCegarLoop]: Abstraction has 135 states and 164 transitions. [2022-07-13 04:00:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 164 transitions. [2022-07-13 04:00:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 81. [2022-07-13 04:00:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 80 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2022-07-13 04:00:45,310 INFO L392 hiAutomatonCegarLoop]: Abstraction has 81 states and 102 transitions. [2022-07-13 04:00:45,311 INFO L374 stractBuchiCegarLoop]: Abstraction has 81 states and 102 transitions. [2022-07-13 04:00:45,311 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 04:00:45,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 102 transitions. [2022-07-13 04:00:45,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-07-13 04:00:45,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:45,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:45,316 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:45,316 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:45,316 INFO L752 eck$LassoCheckResult]: Stem: 1150#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 1151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1152#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 1153#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 1157#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 1156#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 1154#L33-1 main_~i~0#1 := 0; 1155#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1192#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1204#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1208#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1179#L35-3 [2022-07-13 04:00:45,316 INFO L754 eck$LassoCheckResult]: Loop: 1179#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 1158#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1159#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1187#L18-2 assume { :end_inline___VERIFIER_assert } true; 1186#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1185#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 1178#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1179#L35-3 [2022-07-13 04:00:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 4 times [2022-07-13 04:00:45,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:45,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474195719] [2022-07-13 04:00:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:45,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:45,327 INFO L85 PathProgramCache]: Analyzing trace with hash 15031842, now seen corresponding path program 1 times [2022-07-13 04:00:45,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:45,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020626154] [2022-07-13 04:00:45,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:45,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:45,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:45,345 INFO L85 PathProgramCache]: Analyzing trace with hash 28769428, now seen corresponding path program 2 times [2022-07-13 04:00:45,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:45,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366944624] [2022-07-13 04:00:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:45,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,360 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:45,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:45,405 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:45,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:45,406 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:45,406 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:45,406 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:45,406 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,406 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:45,406 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:45,406 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2022-07-13 04:00:45,406 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:45,406 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:45,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:45,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:45,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,458 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 04:00:45,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:45,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:45,474 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:45,475 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:45,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 04:00:45,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,491 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 04:00:45,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:45,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:45,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-13 04:00:45,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,519 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 04:00:45,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:45,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:45,888 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:45,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-13 04:00:45,892 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:45,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:45,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:45,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:45,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:45,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:45,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:45,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2022-07-13 04:00:45,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:45,892 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:45,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:45,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:45,954 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:45,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,955 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:45,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:45,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:45,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:45,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:45,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:45,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:45,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:45,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 04:00:45,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:45,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:45,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:45,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:45,996 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:45,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-13 04:00:46,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:46,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:46,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:46,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:46,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:46,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:46,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:46,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:46,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:46,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-07-13 04:00:46,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:46,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:46,037 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:46,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-13 04:00:46,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:46,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:46,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:46,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:46,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:46,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:46,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:46,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:46,048 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:46,050 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 04:00:46,051 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 04:00:46,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:46,053 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:46,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-13 04:00:46,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:46,056 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:46,056 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:46,056 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 5*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-13 04:00:46,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:46,075 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:46,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,179 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 04:00:46,179 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 85 states and 106 transitions. Complement of second has 5 states. [2022-07-13 04:00:46,186 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 [2022-07-13 04:00:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-13 04:00:46,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-13 04:00:46,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:46,191 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:46,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,325 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 04:00:46,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 85 states and 106 transitions. Complement of second has 5 states. [2022-07-13 04:00:46,331 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 [2022-07-13 04:00:46,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-13 04:00:46,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-13 04:00:46,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:46,333 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,397 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 04:00:46,397 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 102 transitions. cyclomatic complexity: 25. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 183 states and 223 transitions. Complement of second has 10 states. [2022-07-13 04:00:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-07-13 04:00:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2022-07-13 04:00:46,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-13 04:00:46,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:46,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 18 letters. Loop has 7 letters. [2022-07-13 04:00:46,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:46,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 11 letters. Loop has 14 letters. [2022-07-13 04:00:46,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:46,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 223 transitions. [2022-07-13 04:00:46,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-07-13 04:00:46,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 169 states and 207 transitions. [2022-07-13 04:00:46,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-07-13 04:00:46,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-07-13 04:00:46,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 207 transitions. [2022-07-13 04:00:46,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:46,441 INFO L369 hiAutomatonCegarLoop]: Abstraction has 169 states and 207 transitions. [2022-07-13 04:00:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 207 transitions. [2022-07-13 04:00:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 126. [2022-07-13 04:00:46,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 125 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:46,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 160 transitions. [2022-07-13 04:00:46,458 INFO L392 hiAutomatonCegarLoop]: Abstraction has 126 states and 160 transitions. [2022-07-13 04:00:46,458 INFO L374 stractBuchiCegarLoop]: Abstraction has 126 states and 160 transitions. [2022-07-13 04:00:46,459 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 04:00:46,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 160 transitions. [2022-07-13 04:00:46,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-07-13 04:00:46,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:46,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:46,461 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:46,461 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:46,461 INFO L752 eck$LassoCheckResult]: Stem: 1794#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 1795#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1796#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 1797#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 1801#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 1800#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 1798#L33-1 main_~i~0#1 := 0; 1799#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1824#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1808#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1809#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1832#L35-3 [2022-07-13 04:00:46,461 INFO L754 eck$LassoCheckResult]: Loop: 1832#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 1827#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1830#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1829#L18-2 assume { :end_inline___VERIFIER_assert } true; 1813#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1802#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1803#L18 assume !(0 == __VERIFIER_assert_~cond#1); 1816#L18-2 assume { :end_inline___VERIFIER_assert } true; 1819#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1828#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 1821#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 1822#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1806#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1807#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1832#L35-3 [2022-07-13 04:00:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:46,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 5 times [2022-07-13 04:00:46,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:46,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463316362] [2022-07-13 04:00:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:46,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:46,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:46,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:46,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2069021769, now seen corresponding path program 2 times [2022-07-13 04:00:46,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:46,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080026458] [2022-07-13 04:00:46,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:46,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:46,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080026458] [2022-07-13 04:00:46,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080026458] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 04:00:46,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375267039] [2022-07-13 04:00:46,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 04:00:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 04:00:46,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:46,564 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 04:00:46,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-07-13 04:00:46,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 04:00:46,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 04:00:46,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 04:00:46,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 04:00:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:46,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375267039] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 04:00:46,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 04:00:46,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-07-13 04:00:46,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689949221] [2022-07-13 04:00:46,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 04:00:46,764 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:00:46,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 04:00:46,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-07-13 04:00:46,765 INFO L87 Difference]: Start difference. First operand 126 states and 160 transitions. cyclomatic complexity: 38 Second operand has 18 states, 18 states have (on average 2.0) internal successors, (36), 17 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:47,183 INFO L93 Difference]: Finished difference Result 438 states and 528 transitions. [2022-07-13 04:00:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-13 04:00:47,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 438 states and 528 transitions. [2022-07-13 04:00:47,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2022-07-13 04:00:47,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 438 states to 438 states and 528 transitions. [2022-07-13 04:00:47,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2022-07-13 04:00:47,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2022-07-13 04:00:47,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 438 states and 528 transitions. [2022-07-13 04:00:47,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:47,188 INFO L369 hiAutomatonCegarLoop]: Abstraction has 438 states and 528 transitions. [2022-07-13 04:00:47,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states and 528 transitions. [2022-07-13 04:00:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 226. [2022-07-13 04:00:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.2212389380530972) internal successors, (276), 225 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:47,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 276 transitions. [2022-07-13 04:00:47,202 INFO L392 hiAutomatonCegarLoop]: Abstraction has 226 states and 276 transitions. [2022-07-13 04:00:47,202 INFO L374 stractBuchiCegarLoop]: Abstraction has 226 states and 276 transitions. [2022-07-13 04:00:47,202 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 04:00:47,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 276 transitions. [2022-07-13 04:00:47,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-07-13 04:00:47,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:47,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:47,203 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:47,203 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:47,204 INFO L752 eck$LassoCheckResult]: Stem: 2495#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 2496#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2497#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 2498#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 2502#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 2501#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 2499#L33-1 main_~i~0#1 := 0; 2500#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2531#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 2542#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2543#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2541#L35-3 [2022-07-13 04:00:47,204 INFO L754 eck$LassoCheckResult]: Loop: 2541#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 2535#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2565#L18 assume !(0 == __VERIFIER_assert_~cond#1); 2563#L18-2 assume { :end_inline___VERIFIER_assert } true; 2549#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2503#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2504#L18 assume !(0 == __VERIFIER_assert_~cond#1); 2524#L18-2 assume { :end_inline___VERIFIER_assert } true; 2525#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2538#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 2539#L18 assume !(0 == __VERIFIER_assert_~cond#1); 2668#L18-2 assume { :end_inline___VERIFIER_assert } true; 2669#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2537#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 2536#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 2534#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 2507#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2508#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 2541#L35-3 [2022-07-13 04:00:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 6 times [2022-07-13 04:00:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:47,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849303502] [2022-07-13 04:00:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:47,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:47,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:47,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1182901838, now seen corresponding path program 3 times [2022-07-13 04:00:47,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:47,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314696021] [2022-07-13 04:00:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:47,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:47,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:47,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1513942172, now seen corresponding path program 3 times [2022-07-13 04:00:47,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:47,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916022879] [2022-07-13 04:00:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 04:00:47,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916022879] [2022-07-13 04:00:47,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916022879] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 04:00:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147988520] [2022-07-13 04:00:47,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 04:00:47,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 04:00:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,262 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-07-13 04:00:47,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-07-13 04:00:47,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 04:00:47,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:47,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:47,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 04:00:47,416 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:47,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147988520] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 04:00:47,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 04:00:47,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2022-07-13 04:00:47,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077711355] [2022-07-13 04:00:47,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 04:00:47,530 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:47,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:47,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:47,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:47,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:47,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:47,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:47,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration8_Loop [2022-07-13 04:00:47,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:47,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:47,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:47,597 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:47,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,607 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-13 04:00:47,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:47,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:47,617 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:47,617 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:47,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-13 04:00:47,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,634 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-13 04:00:47,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:47,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:47,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:47,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:47,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:47,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,663 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-13 04:00:47,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:47,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:47,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:47,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:47,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-13 04:00:47,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,689 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-13 04:00:47,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:47,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:47,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-13 04:00:47,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:47,715 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:47,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-13 04:00:47,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:47,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:47,978 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:47,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:47,984 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:47,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:47,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:47,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:47,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:47,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:47,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:47,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:47,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration8_Loop [2022-07-13 04:00:47,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:47,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:47,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:47,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:48,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:48,061 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:48,062 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:48,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:48,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,063 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-13 04:00:48,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:48,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:48,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:48,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:48,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:48,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:48,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:48,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:48,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:48,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-13 04:00:48,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:48,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,092 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-13 04:00:48,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:48,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:48,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:48,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:48,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:48,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:48,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:48,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:48,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:48,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-07-13 04:00:48,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:48,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,118 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-13 04:00:48,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:48,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:48,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:48,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:48,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:48,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:48,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:48,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:48,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:48,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-13 04:00:48,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:48,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,145 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-13 04:00:48,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:48,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:48,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:48,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:48,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:48,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:48,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:48,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:48,158 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:48,160 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 04:00:48,160 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 04:00:48,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:48,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,161 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-13 04:00:48,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:48,163 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:48,163 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:48,163 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2022-07-13 04:00:48,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:48,178 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:48,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:48,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:48,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 04:00:48,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:48,332 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-13 04:00:48,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 226 states and 276 transitions. cyclomatic complexity: 54 Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:48,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:48,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 226 states and 276 transitions. cyclomatic complexity: 54. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 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 888 states and 1072 transitions. Complement of second has 32 states. [2022-07-13 04:00:48,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 17 states 1 stem states 15 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:48,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 71 transitions. [2022-07-13 04:00:48,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 11 letters. Loop has 18 letters. [2022-07-13 04:00:48,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:48,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 29 letters. Loop has 18 letters. [2022-07-13 04:00:48,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:48,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 11 letters. Loop has 36 letters. [2022-07-13 04:00:48,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:48,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1072 transitions. [2022-07-13 04:00:48,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2022-07-13 04:00:48,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 666 states and 803 transitions. [2022-07-13 04:00:48,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2022-07-13 04:00:48,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-07-13 04:00:48,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 666 states and 803 transitions. [2022-07-13 04:00:48,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:48,590 INFO L369 hiAutomatonCegarLoop]: Abstraction has 666 states and 803 transitions. [2022-07-13 04:00:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states and 803 transitions. [2022-07-13 04:00:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 340. [2022-07-13 04:00:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 340 states have (on average 1.2323529411764707) internal successors, (419), 339 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 419 transitions. [2022-07-13 04:00:48,595 INFO L392 hiAutomatonCegarLoop]: Abstraction has 340 states and 419 transitions. [2022-07-13 04:00:48,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 04:00:48,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-13 04:00:48,596 INFO L87 Difference]: Start difference. First operand 340 states and 419 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:48,806 INFO L93 Difference]: Finished difference Result 882 states and 1060 transitions. [2022-07-13 04:00:48,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 04:00:48,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 882 states and 1060 transitions. [2022-07-13 04:00:48,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-07-13 04:00:48,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 882 states to 814 states and 980 transitions. [2022-07-13 04:00:48,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 78 [2022-07-13 04:00:48,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2022-07-13 04:00:48,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 814 states and 980 transitions. [2022-07-13 04:00:48,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:48,814 INFO L369 hiAutomatonCegarLoop]: Abstraction has 814 states and 980 transitions. [2022-07-13 04:00:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states and 980 transitions. [2022-07-13 04:00:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 485. [2022-07-13 04:00:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 485 states have (on average 1.2185567010309277) internal successors, (591), 484 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 591 transitions. [2022-07-13 04:00:48,820 INFO L392 hiAutomatonCegarLoop]: Abstraction has 485 states and 591 transitions. [2022-07-13 04:00:48,820 INFO L374 stractBuchiCegarLoop]: Abstraction has 485 states and 591 transitions. [2022-07-13 04:00:48,821 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-13 04:00:48,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 485 states and 591 transitions. [2022-07-13 04:00:48,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-07-13 04:00:48,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:48,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:48,823 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:48,823 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1] [2022-07-13 04:00:48,823 INFO L752 eck$LassoCheckResult]: Stem: 5205#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 5206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5207#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 5208#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 5212#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 5211#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 5209#L33-1 main_~i~0#1 := 0; 5210#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 5300#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 5299#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5296#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 5294#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 5277#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 5291#L18 assume !(0 == __VERIFIER_assert_~cond#1); 5289#L18-2 assume { :end_inline___VERIFIER_assert } true; 5286#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5284#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 5280#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 5276#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 5274#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5269#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 5268#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 5267#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 5335#L18 assume !(0 == __VERIFIER_assert_~cond#1); 5334#L18-2 assume { :end_inline___VERIFIER_assert } true; 5333#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5307#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 5303#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 5301#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 5213#L36-3 [2022-07-13 04:00:48,823 INFO L754 eck$LassoCheckResult]: Loop: 5213#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 5214#L18 assume !(0 == __VERIFIER_assert_~cond#1); 5229#L18-2 assume { :end_inline___VERIFIER_assert } true; 5232#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5258#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 5257#L18 assume !(0 == __VERIFIER_assert_~cond#1); 5256#L18-2 assume { :end_inline___VERIFIER_assert } true; 5255#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5254#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 5234#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 5235#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 5213#L36-3 [2022-07-13 04:00:48,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1334545203, now seen corresponding path program 4 times [2022-07-13 04:00:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:48,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480444961] [2022-07-13 04:00:48,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 04:00:48,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:48,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480444961] [2022-07-13 04:00:48,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480444961] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 04:00:48,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784749663] [2022-07-13 04:00:48,860 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 04:00:48,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 04:00:48,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:48,861 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 04:00:48,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-07-13 04:00:48,887 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 04:00:48,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 04:00:48,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 04:00:48,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 04:00:48,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 04:00:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 04:00:48,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784749663] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 04:00:48,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 04:00:48,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-13 04:00:48,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035040638] [2022-07-13 04:00:48,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 04:00:48,996 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 04:00:48,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:48,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1426778589, now seen corresponding path program 2 times [2022-07-13 04:00:48,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:48,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429312708] [2022-07-13 04:00:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:49,000 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:49,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:49,074 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:49,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:49,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:49,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:49,074 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:49,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:49,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:49,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration9_Loop [2022-07-13 04:00:49,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:49,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:49,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,128 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:49,128 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:49,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,130 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-13 04:00:49,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:49,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:49,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:49,147 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:49,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-07-13 04:00:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,164 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-13 04:00:49,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:49,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:49,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:49,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,215 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-13 04:00:49,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:49,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:49,590 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:49,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-13 04:00:49,594 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:49,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:49,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:49,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:49,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:49,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:49,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:49,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration9_Loop [2022-07-13 04:00:49,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:49,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:49,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:49,655 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:49,655 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:49,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,657 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-13 04:00:49,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:49,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:49,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:49,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:49,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:49,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:49,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:49,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:49,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:49,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2022-07-13 04:00:49,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,753 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-13 04:00:49,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:49,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:49,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:49,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:49,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:49,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:49,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:49,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:49,765 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:49,767 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 04:00:49,767 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 04:00:49,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:49,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:49,769 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:49,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-13 04:00:49,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:49,771 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:49,771 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:49,771 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 3*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2022-07-13 04:00:49,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:49,787 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:49,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:49,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:49,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:49,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:49,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 04:00:49,873 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:49,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:49,888 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 499 states and 605 transitions. Complement of second has 7 states. [2022-07-13 04:00:49,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 04:00:49,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-13 04:00:49,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:49,889 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:49,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:49,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:49,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:49,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 04:00:49,950 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:49,951 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:49,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 499 states and 605 transitions. Complement of second has 7 states. [2022-07-13 04:00:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 04:00:49,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-13 04:00:49,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:49,974 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:49,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:49,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:49,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:50,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:50,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-13 04:00:50,044 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:50,045 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:50,065 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 485 states and 591 transitions. cyclomatic complexity: 118. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 888 states and 1043 transitions. Complement of second has 6 states. [2022-07-13 04:00:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-07-13 04:00:50,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-13 04:00:50,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:50,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 40 letters. Loop has 11 letters. [2022-07-13 04:00:50,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:50,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 29 letters. Loop has 22 letters. [2022-07-13 04:00:50,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:50,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1043 transitions. [2022-07-13 04:00:50,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-07-13 04:00:50,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 656 states and 775 transitions. [2022-07-13 04:00:50,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-07-13 04:00:50,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2022-07-13 04:00:50,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 656 states and 775 transitions. [2022-07-13 04:00:50,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:50,077 INFO L369 hiAutomatonCegarLoop]: Abstraction has 656 states and 775 transitions. [2022-07-13 04:00:50,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states and 775 transitions. [2022-07-13 04:00:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 557. [2022-07-13 04:00:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 557 states have (on average 1.1759425493716338) internal successors, (655), 556 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:50,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 655 transitions. [2022-07-13 04:00:50,085 INFO L392 hiAutomatonCegarLoop]: Abstraction has 557 states and 655 transitions. [2022-07-13 04:00:50,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:50,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 04:00:50,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 04:00:50,086 INFO L87 Difference]: Start difference. First operand 557 states and 655 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:50,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:50,188 INFO L93 Difference]: Finished difference Result 581 states and 658 transitions. [2022-07-13 04:00:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 04:00:50,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 581 states and 658 transitions. [2022-07-13 04:00:50,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-07-13 04:00:50,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 581 states to 260 states and 290 transitions. [2022-07-13 04:00:50,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-07-13 04:00:50,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2022-07-13 04:00:50,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 290 transitions. [2022-07-13 04:00:50,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:50,193 INFO L369 hiAutomatonCegarLoop]: Abstraction has 260 states and 290 transitions. [2022-07-13 04:00:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 290 transitions. [2022-07-13 04:00:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2022-07-13 04:00:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 244 states have (on average 1.1229508196721312) internal successors, (274), 243 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2022-07-13 04:00:50,197 INFO L392 hiAutomatonCegarLoop]: Abstraction has 244 states and 274 transitions. [2022-07-13 04:00:50,197 INFO L374 stractBuchiCegarLoop]: Abstraction has 244 states and 274 transitions. [2022-07-13 04:00:50,197 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-13 04:00:50,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 274 transitions. [2022-07-13 04:00:50,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 37 [2022-07-13 04:00:50,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:50,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:50,199 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:50,199 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:50,200 INFO L752 eck$LassoCheckResult]: Stem: 9301#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 9302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 9303#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 9304#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 9308#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 9307#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 9305#L33-1 main_~i~0#1 := 0; 9306#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 9335#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 9315#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 9316#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 9397#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 9484#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9483#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9482#L18-2 assume { :end_inline___VERIFIER_assert } true; 9481#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9479#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 9459#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 9369#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 9370#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 9360#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 9356#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 9309#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9310#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9529#L18-2 assume { :end_inline___VERIFIER_assert } true; 9527#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9525#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9524#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9523#L18-2 assume { :end_inline___VERIFIER_assert } true; 9522#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9358#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 9357#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 9355#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 9353#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9324#L18 [2022-07-13 04:00:50,200 INFO L754 eck$LassoCheckResult]: Loop: 9324#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9325#L18-2 assume { :end_inline___VERIFIER_assert } true; 9320#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9321#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9350#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9327#L18-2 assume { :end_inline___VERIFIER_assert } true; 9328#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9349#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9348#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9347#L18-2 assume { :end_inline___VERIFIER_assert } true; 9346#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9345#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9344#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9343#L18-2 assume { :end_inline___VERIFIER_assert } true; 9342#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9341#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9338#L18 assume !(0 == __VERIFIER_assert_~cond#1); 9340#L18-2 assume { :end_inline___VERIFIER_assert } true; 9339#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9337#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 9331#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 9332#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 9313#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 9314#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 9354#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 9351#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 9324#L18 [2022-07-13 04:00:50,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:50,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1304386790, now seen corresponding path program 5 times [2022-07-13 04:00:50,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:50,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566541234] [2022-07-13 04:00:50,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:50,210 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:50,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:50,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash 96299068, now seen corresponding path program 4 times [2022-07-13 04:00:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:50,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851228742] [2022-07-13 04:00:50,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:50,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:50,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:50,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:50,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash -96091935, now seen corresponding path program 6 times [2022-07-13 04:00:50,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:50,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623357974] [2022-07-13 04:00:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 86 proven. 87 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 04:00:50,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:00:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623357974] [2022-07-13 04:00:50,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623357974] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 04:00:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165654458] [2022-07-13 04:00:50,315 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 04:00:50,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 04:00:50,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,316 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-07-13 04:00:50,352 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-07-13 04:00:50,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 04:00:50,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 04:00:50,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:50,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 95 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 04:00:50,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 04:00:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 95 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 04:00:50,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165654458] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 04:00:50,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 04:00:50,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 17 [2022-07-13 04:00:50,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71645716] [2022-07-13 04:00:50,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 04:00:50,700 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:50,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:50,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:50,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:50,700 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:50,701 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,701 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:50,701 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:50,701 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration10_Loop [2022-07-13 04:00:50,701 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:50,701 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:50,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:50,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:50,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:50,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:50,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:50,773 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:50,773 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:50,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,775 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-13 04:00:50,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:50,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:50,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:50,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:50,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-07-13 04:00:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,800 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-07-13 04:00:50,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:50,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:50,809 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:50,809 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:50,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-07-13 04:00:50,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,826 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-07-13 04:00:50,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:50,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:50,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:50,840 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=1, ULTIMATE.start___VERIFIER_assert_#in~cond#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:50,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-07-13 04:00:50,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,856 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-07-13 04:00:50,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:50,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:50,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:50,883 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:50,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:50,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,903 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-07-13 04:00:50,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:50,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:50,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2022-07-13 04:00:50,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:50,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:50,929 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:50,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-07-13 04:00:50,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:50,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:51,265 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:51,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-07-13 04:00:51,270 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:51,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:51,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:51,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:51,270 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:51,270 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,270 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:51,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:51,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration10_Loop [2022-07-13 04:00:51,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:51,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:51,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:51,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:51,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:51,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:51,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:51,360 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:51,360 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:51,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,361 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-07-13 04:00:51,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:51,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:51,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:51,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:51,369 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 04:00:51,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:51,371 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 04:00:51,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:51,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:51,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-07-13 04:00:51,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,390 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-07-13 04:00:51,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:51,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:51,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:51,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:51,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:51,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:51,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:51,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:51,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:51,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2022-07-13 04:00:51,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,415 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-07-13 04:00:51,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:51,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:51,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:51,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:51,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:51,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:51,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:51,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:51,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:51,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2022-07-13 04:00:51,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,443 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-07-13 04:00:51,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:51,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:51,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:51,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:51,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:51,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:51,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:51,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:51,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:51,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,488 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-07-13 04:00:51,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:51,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:51,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:51,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:51,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:51,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:51,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:51,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:51,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:51,523 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 04:00:51,524 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 04:00:51,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:51,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:51,525 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:51,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-07-13 04:00:51,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:51,527 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:51,527 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:51,527 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 7*ULTIMATE.start_main_~n~0#1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-13 04:00:51,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:51,543 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:51,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:51,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:51,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 04:00:51,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:51,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-13 04:00:51,742 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 04:00:51,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 244 states and 274 transitions. cyclomatic complexity: 38 Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:51,768 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 244 states and 274 transitions. cyclomatic complexity: 38. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 539 states and 617 transitions. Complement of second has 8 states. [2022-07-13 04:00:51,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-07-13 04:00:51,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 34 letters. Loop has 26 letters. [2022-07-13 04:00:51,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:51,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 60 letters. Loop has 26 letters. [2022-07-13 04:00:51,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:51,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 34 letters. Loop has 52 letters. [2022-07-13 04:00:51,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:51,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 539 states and 617 transitions. [2022-07-13 04:00:51,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 04:00:51,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 539 states to 347 states and 393 transitions. [2022-07-13 04:00:51,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-07-13 04:00:51,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2022-07-13 04:00:51,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 393 transitions. [2022-07-13 04:00:51,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:51,773 INFO L369 hiAutomatonCegarLoop]: Abstraction has 347 states and 393 transitions. [2022-07-13 04:00:51,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 393 transitions. [2022-07-13 04:00:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 316. [2022-07-13 04:00:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 316 states have (on average 1.1265822784810127) internal successors, (356), 315 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 356 transitions. [2022-07-13 04:00:51,776 INFO L392 hiAutomatonCegarLoop]: Abstraction has 316 states and 356 transitions. [2022-07-13 04:00:51,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:00:51,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 04:00:51,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-07-13 04:00:51,777 INFO L87 Difference]: Start difference. First operand 316 states and 356 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:52,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:00:52,113 INFO L93 Difference]: Finished difference Result 508 states and 557 transitions. [2022-07-13 04:00:52,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 04:00:52,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 508 states and 557 transitions. [2022-07-13 04:00:52,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 04:00:52,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 508 states to 388 states and 429 transitions. [2022-07-13 04:00:52,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-13 04:00:52,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-13 04:00:52,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 388 states and 429 transitions. [2022-07-13 04:00:52,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 04:00:52,118 INFO L369 hiAutomatonCegarLoop]: Abstraction has 388 states and 429 transitions. [2022-07-13 04:00:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states and 429 transitions. [2022-07-13 04:00:52,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 355. [2022-07-13 04:00:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 355 states have (on average 1.115492957746479) internal successors, (396), 354 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 396 transitions. [2022-07-13 04:00:52,122 INFO L392 hiAutomatonCegarLoop]: Abstraction has 355 states and 396 transitions. [2022-07-13 04:00:52,122 INFO L374 stractBuchiCegarLoop]: Abstraction has 355 states and 396 transitions. [2022-07-13 04:00:52,122 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-13 04:00:52,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 355 states and 396 transitions. [2022-07-13 04:00:52,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 04:00:52,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:00:52,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:00:52,125 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:00:52,125 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 04:00:52,127 INFO L752 eck$LassoCheckResult]: Stem: 11519#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 11520#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 11521#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 11522#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 11526#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 11525#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 11523#L33-1 main_~i~0#1 := 0; 11524#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 11545#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 11612#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 11568#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 11569#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 11742#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11741#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11740#L18-2 assume { :end_inline___VERIFIER_assert } true; 11739#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11714#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 11712#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 11710#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 11531#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 11532#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 11535#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 11536#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11866#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11864#L18-2 assume { :end_inline___VERIFIER_assert } true; 11862#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11856#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11855#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11853#L18-2 assume { :end_inline___VERIFIER_assert } true; 11851#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11843#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 11797#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 11779#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 11777#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11776#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11775#L18-2 assume { :end_inline___VERIFIER_assert } true; 11596#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11594#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11595#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11766#L18-2 assume { :end_inline___VERIFIER_assert } true; 11590#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11588#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11589#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11758#L18-2 assume { :end_inline___VERIFIER_assert } true; 11757#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11583#L36-3 assume !(main_~k~0#1 < main_~j~0#1); 11577#L35-2 main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 11572#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 11573#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 11552#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 11551#L35-3 assume !!(main_~j~0#1 < 3 * main_~i~0#1);main_~k~0#1 := main_~i~0#1; 11550#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11528#L18 [2022-07-13 04:00:52,127 INFO L754 eck$LassoCheckResult]: Loop: 11528#L18 assume !(0 == __VERIFIER_assert_~cond#1); 11540#L18-2 assume { :end_inline___VERIFIER_assert } true; 11537#L36-2 main_#t~post6#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 11527#L36-3 assume !!(main_~k~0#1 < main_~j~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 - main_~i~0#1 <= 2 * main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11528#L18 [2022-07-13 04:00:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash -586107213, now seen corresponding path program 7 times [2022-07-13 04:00:52,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:52,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745711931] [2022-07-13 04:00:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:52,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:52,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:52,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2619672, now seen corresponding path program 1 times [2022-07-13 04:00:52,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:52,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025530804] [2022-07-13 04:00:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:52,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,170 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:52,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash -474347830, now seen corresponding path program 8 times [2022-07-13 04:00:52,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:00:52,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285244798] [2022-07-13 04:00:52,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:00:52,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:00:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,188 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:00:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:00:52,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:00:52,244 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:52,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:52,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:52,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:52,244 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 04:00:52,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:52,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:52,245 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:52,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration11_Loop [2022-07-13 04:00:52,245 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:52,245 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:52,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:52,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:52,399 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:52,399 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 04:00:52,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:52,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:52,409 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:52,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:52,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:52,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-07-13 04:00:52,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 04:00:52,418 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 04:00:52,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:52,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:52,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:52,434 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:52,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-07-13 04:00:52,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 04:00:52,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:52,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-07-13 04:00:52,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:52,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:52,460 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:52,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-07-13 04:00:52,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 04:00:52,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 04:00:53,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 04:00:53,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2022-07-13 04:00:53,021 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 04:00:53,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 04:00:53,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 04:00:53,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 04:00:53,021 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 04:00:53,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:53,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 04:00:53,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 04:00:53,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration11_Loop [2022-07-13 04:00:53,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 04:00:53,021 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 04:00:53,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:53,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 04:00:53,185 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 04:00:53,185 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 04:00:53,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:53,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:53,187 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:53,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-07-13 04:00:53,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:53,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:53,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:53,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:53,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 04:00:53,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:53,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 04:00:53,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:53,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 04:00:53,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:53,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:53,240 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:53,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-07-13 04:00:53,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 04:00:53,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 04:00:53,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 04:00:53,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 04:00:53,250 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-07-13 04:00:53,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 04:00:53,254 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2022-07-13 04:00:53,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 04:00:53,271 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 04:00:53,275 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 04:00:53,275 INFO L444 ModelExtractionUtils]: 5 out of 8 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 04:00:53,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:00:53,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:00:53,277 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:00:53,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-07-13 04:00:53,279 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 04:00:53,279 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 04:00:53,279 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 04:00:53,280 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~j~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2022-07-13 04:00:53,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-07-13 04:00:53,299 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 04:00:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:53,599 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:53,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,619 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 410 states and 453 transitions. Complement of second has 7 states. [2022-07-13 04:00:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 04:00:53,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-13 04:00:53,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:53,621 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:53,707 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:53,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,720 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 410 states and 453 transitions. Complement of second has 7 states. [2022-07-13 04:00:53,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 04:00:53,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-13 04:00:53,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:53,721 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 04:00:53,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:00:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:00:53,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 04:00:53,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 04:00:53,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:00:53,803 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 04:00:53,803 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 355 states and 396 transitions. cyclomatic complexity: 54. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 610 states and 658 transitions. Complement of second has 6 states. [2022-07-13 04:00:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 04:00:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:00:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-07-13 04:00:53,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-13 04:00:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:53,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 56 letters. Loop has 4 letters. [2022-07-13 04:00:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:53,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 52 letters. Loop has 8 letters. [2022-07-13 04:00:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 04:00:53,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 610 states and 658 transitions. [2022-07-13 04:00:53,824 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 04:00:53,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 610 states to 0 states and 0 transitions. [2022-07-13 04:00:53,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 04:00:53,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 04:00:53,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 04:00:53,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:00:53,825 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:00:53,825 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:00:53,825 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 04:00:53,825 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-13 04:00:53,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 04:00:53,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 04:00:53,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 04:00:53,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 04:00:53 BoogieIcfgContainer [2022-07-13 04:00:53,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 04:00:53,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 04:00:53,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 04:00:53,833 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 04:00:53,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:00:41" (3/4) ... [2022-07-13 04:00:53,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 04:00:53,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 04:00:53,837 INFO L158 Benchmark]: Toolchain (without parser) took 12948.71ms. Allocated memory was 104.9MB in the beginning and 155.2MB in the end (delta: 50.3MB). Free memory was 75.5MB in the beginning and 74.6MB in the end (delta: 952.2kB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-07-13 04:00:53,837 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 60.8MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:00:53,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.67ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 80.2MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 04:00:53,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.78ms. Allocated memory is still 104.9MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:00:53,838 INFO L158 Benchmark]: Boogie Preprocessor took 12.51ms. Allocated memory is still 104.9MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 930.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:00:53,838 INFO L158 Benchmark]: RCFGBuilder took 194.87ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 67.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 04:00:53,838 INFO L158 Benchmark]: BuchiAutomizer took 12527.60ms. Allocated memory was 104.9MB in the beginning and 155.2MB in the end (delta: 50.3MB). Free memory was 67.8MB in the beginning and 74.6MB in the end (delta: -6.7MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-07-13 04:00:53,838 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 155.2MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:00:53,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 60.8MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.67ms. Allocated memory is still 104.9MB. Free memory was 75.4MB in the beginning and 80.2MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.78ms. Allocated memory is still 104.9MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.51ms. Allocated memory is still 104.9MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 930.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 194.87ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 67.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 12527.60ms. Allocated memory was 104.9MB in the beginning and 155.2MB in the end (delta: 50.3MB). Free memory was 67.8MB in the beginning and 74.6MB in the end (delta: -6.7MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 155.2MB. Free memory is still 74.6MB. 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 16 terminating modules (7 trivial, 6 deterministic, 3 nondeterministic). One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * j + n and consists of 7 locations. One deterministic module has affine ranking function -1 * i + 1 and consists of 8 locations. One deterministic module has affine ranking function -2 * i + 3 and consists of 10 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 17 locations. One deterministic module has affine ranking function 7 * n + -4 * i and consists of 5 locations. One nondeterministic module has affine ranking function -2 * j + 5 * i and consists of 6 locations. One nondeterministic module has affine ranking function -1 * j + 3 * i and consists of 4 locations. One nondeterministic module has affine ranking function j + -1 * k and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.4s and 12 iterations. TraceHistogramMax:7. Analysis of lassos took 8.4s. Construction of modules took 0.6s. Büchi inclusion checks took 3.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 14. Automata minimization 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 1227 StatesRemovedByMinimization, 13 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 [6, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 55/73 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 767 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 449 mSDsCounter, 250 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1094 IncrementalHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 250 mSolverCounterUnsat, 318 mSDtfsCounter, 1094 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT4 conc0 concLT4 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital40 mio100 ax100 hnf100 lsp91 ukn98 mio100 lsp100 div100 bol100 ite100 ukn100 eq144 hnf94 smp98 dnf130 smp96 tf104 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 40ms VariablesStem: 0 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 04:00:53,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:54,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2022-07-13 04:00:54,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:54,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-07-13 04:00:54,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-07-13 04:00:54,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE