./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 35987657 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-?-3598765 [2022-07-22 02:20:40,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:20:40,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:20:40,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:20:40,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:20:40,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:20:40,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:20:40,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:20:40,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:20:40,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:20:40,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:20:40,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:20:40,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:20:40,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:20:40,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:20:40,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:20:40,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:20:40,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:20:40,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:20:40,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:20:40,595 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:20:40,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:20:40,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:20:40,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:20:40,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:20:40,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:20:40,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:20:40,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:20:40,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:20:40,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:20:40,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:20:40,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:20:40,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:20:40,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:20:40,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:20:40,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:20:40,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:20:40,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:20:40,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:20:40,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:20:40,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:20:40,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:20:40,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:20:40,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:20:40,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:20:40,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:20:40,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:20:40,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:20:40,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:20:40,655 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:20:40,655 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:20:40,656 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:20:40,656 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:20:40,657 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:20:40,657 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:20:40,657 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:20:40,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:20:40,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:20:40,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:20:40,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:20:40,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:20:40,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:20:40,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:20:40,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:20:40,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:20:40,664 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:20:40,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:20:40,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:20:40,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:20:40,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:20:40,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:20:40,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:20:40,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:20:40,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:20:40,669 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:20:40,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3ca1fd1ad8fdbcd9efe7b99bc6e3715231417d253ce4ee9bba3d5969472333a [2022-07-22 02:20:40,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:20:41,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:20:41,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:20:41,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:20:41,020 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:20:41,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/nested9.i [2022-07-22 02:20:41,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a516702/2835c35dba984270bea32db9726d9586/FLAGd1060c33a [2022-07-22 02:20:41,599 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:20:41,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/nested9.i [2022-07-22 02:20:41,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a516702/2835c35dba984270bea32db9726d9586/FLAGd1060c33a [2022-07-22 02:20:41,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a516702/2835c35dba984270bea32db9726d9586 [2022-07-22 02:20:41,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:20:41,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:20:41,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:41,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:20:41,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:20:41,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:41" (1/1) ... [2022-07-22 02:20:41,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c0195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:41, skipping insertion in model container [2022-07-22 02:20:41,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:41" (1/1) ... [2022-07-22 02:20:41,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:20:42,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:20:42,133 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] [2022-07-22 02:20:42,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:42,154 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:20:42,213 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] [2022-07-22 02:20:42,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:42,241 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:20:42,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42 WrapperNode [2022-07-22 02:20:42,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:42,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:42,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:20:42,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:20:42,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,279 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-07-22 02:20:42,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:42,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:20:42,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:20:42,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:20:42,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:20:42,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:20:42,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:20:42,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:20:42,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (1/1) ... [2022-07-22 02:20:42,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:42,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:42,357 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) [2022-07-22 02:20:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:20:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:20:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:20:42,387 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 [2022-07-22 02:20:42,465 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:20:42,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:20:42,635 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:20:42,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:20:42,640 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 02:20:42,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:42 BoogieIcfgContainer [2022-07-22 02:20:42,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:20:42,643 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:20:42,643 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:20:42,645 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:20:42,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:42,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:20:41" (1/3) ... [2022-07-22 02:20:42,647 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8291da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:42, skipping insertion in model container [2022-07-22 02:20:42,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:42,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:42" (2/3) ... [2022-07-22 02:20:42,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8291da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:42, skipping insertion in model container [2022-07-22 02:20:42,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:42,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:42" (3/3) ... [2022-07-22 02:20:42,650 INFO L354 chiAutomizerObserver]: Analyzing ICFG nested9.i [2022-07-22 02:20:42,703 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:20:42,703 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:20:42,703 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:20:42,704 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:20:42,704 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:20:42,704 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:20:42,704 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:20:42,704 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:20:42,708 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) [2022-07-22 02:20:42,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 02:20:42,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:42,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:42,729 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:42,729 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:20:42,729 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:20:42,730 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) [2022-07-22 02:20:42,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 02:20:42,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:42,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:42,732 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:42,733 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:20:42,738 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 [2022-07-22 02:20:42,739 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 [2022-07-22 02:20:42,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907757, now seen corresponding path program 1 times [2022-07-22 02:20:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:42,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396473022] [2022-07-22 02:20:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:42,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:42,858 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:42,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:42,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 62657, now seen corresponding path program 1 times [2022-07-22 02:20:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520174869] [2022-07-22 02:20:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:42,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:42,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520174869] [2022-07-22 02:20:42,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520174869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:20:42,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:20:42,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 02:20:42,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795167552] [2022-07-22 02:20:42,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:20:42,961 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:20:42,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:42,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 02:20:42,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 02:20:43,000 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) [2022-07-22 02:20:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:43,007 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-07-22 02:20:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 02:20:43,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2022-07-22 02:20:43,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 02:20:43,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 17 transitions. [2022-07-22 02:20:43,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-07-22 02:20:43,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-22 02:20:43,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2022-07-22 02:20:43,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:43,025 INFO L369 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-22 02:20:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2022-07-22 02:20:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-22 02:20:43,048 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) [2022-07-22 02:20:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-07-22 02:20:43,049 INFO L392 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-22 02:20:43,050 INFO L374 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-07-22 02:20:43,050 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:20:43,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2022-07-22 02:20:43,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 02:20:43,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:43,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:43,062 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:43,062 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:20:43,063 INFO L752 eck$LassoCheckResult]: Stem: 48#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 49#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 50#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 51#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 55#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 54#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 52#L33-1 main_~i~0#1 := 0; 53#L34-3 [2022-07-22 02:20:43,063 INFO L754 eck$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 [2022-07-22 02:20:43,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:43,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907757, now seen corresponding path program 2 times [2022-07-22 02:20:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:43,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689586691] [2022-07-22 02:20:43,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:43,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash 61789, now seen corresponding path program 1 times [2022-07-22 02:20:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:43,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597455551] [2022-07-22 02:20:43,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:43,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:43,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash 763900017, now seen corresponding path program 1 times [2022-07-22 02:20:43,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528924422] [2022-07-22 02:20:43,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:43,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:43,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:43,222 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:43,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:43,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:43,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:43,223 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:43,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:43,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:43,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2022-07-22 02:20:43,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:43,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:43,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:43,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:43,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:43,288 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:43,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:43,295 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) [2022-07-22 02:20:43,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:43,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:43,314 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 [2022-07-22 02:20:43,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:43,331 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: [] [2022-07-22 02:20:43,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 02:20:43,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:43,362 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) [2022-07-22 02:20:43,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:43,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:43,371 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 [2022-07-22 02:20:43,407 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 [2022-07-22 02:20:43,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:43,410 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) [2022-07-22 02:20:43,422 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 [2022-07-22 02:20:43,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:43,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:43,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:43,619 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 [2022-07-22 02:20:43,620 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:43,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:43,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:43,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:43,620 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:43,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:43,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:43,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration2_Loop [2022-07-22 02:20:43,620 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:43,621 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:43,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:43,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:43,663 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:43,668 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:43,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:43,671 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) [2022-07-22 02:20:43,701 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 [2022-07-22 02:20:43,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:43,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:43,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:43,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:43,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:43,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:43,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:43,727 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 [2022-07-22 02:20:43,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:43,752 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:20:43,753 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:20:43,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:43,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:43,756 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) [2022-07-22 02:20:43,758 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 [2022-07-22 02:20:43,760 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:43,760 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:43,761 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:43,761 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 [] [2022-07-22 02:20:43,795 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 [2022-07-22 02:20:43,800 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:43,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:43,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:43,921 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 02:20:43,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:43,962 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 [2022-07-22 02:20:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:44,039 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 [2022-07-22 02:20:44,040 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) [2022-07-22 02:20:44,108 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. [2022-07-22 02:20:44,109 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 [2022-07-22 02:20:44,111 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) [2022-07-22 02:20:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-07-22 02:20:44,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 02:20:44,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:44,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 3 letters. [2022-07-22 02:20:44,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:44,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 6 letters. [2022-07-22 02:20:44,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:44,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2022-07-22 02:20:44,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2022-07-22 02:20:44,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 48 transitions. [2022-07-22 02:20:44,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-07-22 02:20:44,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-07-22 02:20:44,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2022-07-22 02:20:44,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:44,118 INFO L369 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-07-22 02:20:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2022-07-22 02:20:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 28. [2022-07-22 02:20:44,125 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) [2022-07-22 02:20:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-07-22 02:20:44,126 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-22 02:20:44,126 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-07-22 02:20:44,126 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:20:44,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2022-07-22 02:20:44,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 02:20:44,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:44,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:44,127 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:44,128 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 02:20:44,128 INFO L752 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 162#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 163#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 164#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 168#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 167#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 165#L33-1 main_~i~0#1 := 0; 166#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 179#L35-3 [2022-07-22 02:20:44,128 INFO L754 eck$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 [2022-07-22 02:20:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash 179565651, now seen corresponding path program 1 times [2022-07-22 02:20:44,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:44,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882599957] [2022-07-22 02:20:44,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:44,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:44,150 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:44,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:44,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2077096969, now seen corresponding path program 1 times [2022-07-22 02:20:44,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:44,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300807350] [2022-07-22 02:20:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:44,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:44,183 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:44,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:44,189 INFO L85 PathProgramCache]: Analyzing trace with hash -696653093, now seen corresponding path program 1 times [2022-07-22 02:20:44,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:44,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635736989] [2022-07-22 02:20:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:44,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:44,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635736989] [2022-07-22 02:20:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635736989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:20:44,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:20:44,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 02:20:44,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008546728] [2022-07-22 02:20:44,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:20:44,297 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:44,297 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:44,298 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:44,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:44,298 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:44,298 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,298 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:44,298 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:44,298 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2022-07-22 02:20:44,298 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:44,298 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:44,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,374 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:44,375 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:44,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:44,380 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) [2022-07-22 02:20:44,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:44,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:44,394 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 [2022-07-22 02:20:44,423 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 [2022-07-22 02:20:44,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:44,427 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) [2022-07-22 02:20:44,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:44,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:44,461 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 [2022-07-22 02:20:44,716 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:44,721 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 [2022-07-22 02:20:44,721 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:44,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:44,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:44,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:44,722 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:44,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:44,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:44,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration3_Loop [2022-07-22 02:20:44,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:44,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:44,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:44,808 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:44,808 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:44,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:44,810 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) [2022-07-22 02:20:44,823 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 [2022-07-22 02:20:44,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:44,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:44,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:44,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:44,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:44,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:44,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:44,842 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 [2022-07-22 02:20:44,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:44,862 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:44,862 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:44,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:44,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:44,865 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) [2022-07-22 02:20:44,866 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 [2022-07-22 02:20:44,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:44,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:44,868 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:44,868 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 [] [2022-07-22 02:20:44,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-22 02:20:44,886 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:44,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:44,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:44,959 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:20:44,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:45,082 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 [2022-07-22 02:20:45,083 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) [2022-07-22 02:20:45,261 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. [2022-07-22 02:20:45,261 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 [2022-07-22 02:20:45,263 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) [2022-07-22 02:20:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 40 transitions. [2022-07-22 02:20:45,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 8 letters. Loop has 6 letters. [2022-07-22 02:20:45,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:45,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 14 letters. Loop has 6 letters. [2022-07-22 02:20:45,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:45,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 40 transitions. Stem has 8 letters. Loop has 12 letters. [2022-07-22 02:20:45,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:45,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 169 transitions. [2022-07-22 02:20:45,271 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 30 [2022-07-22 02:20:45,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 115 states and 145 transitions. [2022-07-22 02:20:45,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2022-07-22 02:20:45,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-07-22 02:20:45,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 145 transitions. [2022-07-22 02:20:45,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:45,282 INFO L369 hiAutomatonCegarLoop]: Abstraction has 115 states and 145 transitions. [2022-07-22 02:20:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 145 transitions. [2022-07-22 02:20:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 81. [2022-07-22 02:20:45,289 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) [2022-07-22 02:20:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2022-07-22 02:20:45,291 INFO L392 hiAutomatonCegarLoop]: Abstraction has 81 states and 106 transitions. [2022-07-22 02:20:45,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 02:20:45,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 02:20:45,292 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) [2022-07-22 02:20:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:45,308 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-07-22 02:20:45,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 02:20:45,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2022-07-22 02:20:45,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 02:20:45,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2022-07-22 02:20:45,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-22 02:20:45,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-22 02:20:45,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2022-07-22 02:20:45,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:45,311 INFO L369 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-07-22 02:20:45,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2022-07-22 02:20:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-07-22 02:20:45,312 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) [2022-07-22 02:20:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-22 02:20:45,330 INFO L392 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-22 02:20:45,330 INFO L374 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-22 02:20:45,331 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 02:20:45,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2022-07-22 02:20:45,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 02:20:45,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:45,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:45,334 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:45,334 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 02:20:45,335 INFO L752 eck$LassoCheckResult]: Stem: 519#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 520#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 521#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 522#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 526#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 525#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 523#L33-1 main_~i~0#1 := 0; 524#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 538#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 535#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 536#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 537#L35-3 [2022-07-22 02:20:45,336 INFO L754 eck$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 [2022-07-22 02:20:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 2 times [2022-07-22 02:20:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:45,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781803767] [2022-07-22 02:20:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:45,350 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:45,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:45,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-22 02:20:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2077096969, now seen corresponding path program 2 times [2022-07-22 02:20:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:45,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447972843] [2022-07-22 02:20:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:45,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:45,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:45,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:45,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash -669865, now seen corresponding path program 2 times [2022-07-22 02:20:45,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:45,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601277909] [2022-07-22 02:20:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:45,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 02:20:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:45,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601277909] [2022-07-22 02:20:45,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601277909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 02:20:45,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 02:20:45,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 02:20:45,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647802343] [2022-07-22 02:20:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 02:20:45,513 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:45,513 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:45,513 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:45,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:45,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:45,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:45,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:45,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:45,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2022-07-22 02:20:45,514 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:45,514 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:45,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:45,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:45,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:45,573 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:45,573 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:45,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:45,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:45,575 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) [2022-07-22 02:20:45,577 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 [2022-07-22 02:20:45,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:45,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:45,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:45,596 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: [] [2022-07-22 02:20:45,613 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 [2022-07-22 02:20:45,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:45,615 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) [2022-07-22 02:20:45,616 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 [2022-07-22 02:20:45,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:45,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:45,671 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 [2022-07-22 02:20:45,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:45,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:45,673 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) [2022-07-22 02:20:45,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:45,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:45,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 02:20:46,070 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:46,076 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 [2022-07-22 02:20:46,076 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:46,076 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:46,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:46,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:46,077 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:46,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:46,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:46,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration4_Loop [2022-07-22 02:20:46,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:46,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:46,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,157 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:46,157 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:46,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:46,159 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) [2022-07-22 02:20:46,168 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 [2022-07-22 02:20:46,168 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 [2022-07-22 02:20:46,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:46,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:46,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:46,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:46,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:46,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:46,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:46,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:46,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:46,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:46,225 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) [2022-07-22 02:20:46,227 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 [2022-07-22 02:20:46,229 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 [2022-07-22 02:20:46,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:46,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:46,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:46,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:46,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:46,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:46,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:46,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:46,258 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:46,258 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:46,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:46,259 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) [2022-07-22 02:20:46,260 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 [2022-07-22 02:20:46,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:46,262 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:46,262 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:46,262 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 [] [2022-07-22 02:20:46,279 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 [2022-07-22 02:20:46,280 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:46,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:46,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:46,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:46,344 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:46,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:46,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:46,462 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 [2022-07-22 02:20:46,462 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) [2022-07-22 02:20:46,594 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. [2022-07-22 02:20:46,594 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 [2022-07-22 02:20:46,597 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) [2022-07-22 02:20:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 37 transitions. [2022-07-22 02:20:46,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 11 letters. Loop has 6 letters. [2022-07-22 02:20:46,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:46,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 17 letters. Loop has 6 letters. [2022-07-22 02:20:46,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:46,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 11 letters. Loop has 12 letters. [2022-07-22 02:20:46,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:46,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 134 transitions. [2022-07-22 02:20:46,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2022-07-22 02:20:46,615 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 103 states and 132 transitions. [2022-07-22 02:20:46,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2022-07-22 02:20:46,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-07-22 02:20:46,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 132 transitions. [2022-07-22 02:20:46,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:46,616 INFO L369 hiAutomatonCegarLoop]: Abstraction has 103 states and 132 transitions. [2022-07-22 02:20:46,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 132 transitions. [2022-07-22 02:20:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 65. [2022-07-22 02:20:46,626 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) [2022-07-22 02:20:46,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions. [2022-07-22 02:20:46,627 INFO L392 hiAutomatonCegarLoop]: Abstraction has 65 states and 86 transitions. [2022-07-22 02:20:46,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:46,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 02:20:46,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 02:20:46,628 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) [2022-07-22 02:20:46,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:46,650 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2022-07-22 02:20:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 02:20:46,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2022-07-22 02:20:46,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-07-22 02:20:46,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 31 states and 37 transitions. [2022-07-22 02:20:46,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-22 02:20:46,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-22 02:20:46,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2022-07-22 02:20:46,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:46,656 INFO L369 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-22 02:20:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2022-07-22 02:20:46,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-22 02:20:46,662 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) [2022-07-22 02:20:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-07-22 02:20:46,663 INFO L392 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-22 02:20:46,663 INFO L374 stractBuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-22 02:20:46,665 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 02:20:46,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2022-07-22 02:20:46,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-07-22 02:20:46,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:46,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:46,667 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:46,667 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:46,667 INFO L752 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 870#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 871#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 872#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 876#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 875#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 873#L33-1 main_~i~0#1 := 0; 874#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 886#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 887#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 899#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 885#L35-3 [2022-07-22 02:20:46,668 INFO L754 eck$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 [2022-07-22 02:20:46,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 3 times [2022-07-22 02:20:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:46,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550180192] [2022-07-22 02:20:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:46,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1137044896, now seen corresponding path program 1 times [2022-07-22 02:20:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:46,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766750489] [2022-07-22 02:20:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:46,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:46,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1923390994, now seen corresponding path program 1 times [2022-07-22 02:20:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:46,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947762207] [2022-07-22 02:20:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:46,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:46,869 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:46,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:46,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:46,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:46,869 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:46,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:46,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:46,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2022-07-22 02:20:46,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:46,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:46,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:46,958 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:46,958 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:46,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:46,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:46,960 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) [2022-07-22 02:20:46,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:46,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:46,975 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 [2022-07-22 02:20:46,988 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:46,988 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: [] [2022-07-22 02:20:47,013 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 [2022-07-22 02:20:47,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,015 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) [2022-07-22 02:20:47,020 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 [2022-07-22 02:20:47,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:47,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:47,034 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:47,034 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: [] [2022-07-22 02:20:47,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-22 02:20:47,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,053 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) [2022-07-22 02:20:47,054 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 [2022-07-22 02:20:47,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:47,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:47,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:47,092 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: [] [2022-07-22 02:20:47,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:47,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,121 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) [2022-07-22 02:20:47,124 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 [2022-07-22 02:20:47,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:47,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:47,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:47,147 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: [] [2022-07-22 02:20:47,179 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 [2022-07-22 02:20:47,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,180 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) [2022-07-22 02:20:47,185 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 [2022-07-22 02:20:47,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:47,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:47,250 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 [2022-07-22 02:20:47,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,252 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) [2022-07-22 02:20:47,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:47,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:47,280 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 [2022-07-22 02:20:47,523 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:47,528 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 [2022-07-22 02:20:47,529 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:47,529 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:47,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:47,529 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:47,529 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:47,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:47,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:47,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration5_Loop [2022-07-22 02:20:47,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:47,529 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:47,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:47,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:47,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:47,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:47,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:47,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:47,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:47,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,625 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) [2022-07-22 02:20:47,648 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 [2022-07-22 02:20:47,649 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 [2022-07-22 02:20:47,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:47,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:47,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:47,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:47,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:47,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:47,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:47,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:47,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:47,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,705 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) [2022-07-22 02:20:47,711 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 [2022-07-22 02:20:47,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:47,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:47,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:47,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:47,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:47,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:47,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:47,724 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 [2022-07-22 02:20:47,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:47,769 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 [2022-07-22 02:20:47,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,771 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) [2022-07-22 02:20:47,773 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 [2022-07-22 02:20:47,774 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 [2022-07-22 02:20:47,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:47,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:47,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:47,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:47,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:47,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:47,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:47,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:47,828 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 [2022-07-22 02:20:47,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,833 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) [2022-07-22 02:20:47,840 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 [2022-07-22 02:20:47,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:47,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:47,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:47,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:47,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:47,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:47,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:47,854 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 [2022-07-22 02:20:47,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:47,882 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 [2022-07-22 02:20:47,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,884 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) [2022-07-22 02:20:47,885 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 [2022-07-22 02:20:47,886 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 [2022-07-22 02:20:47,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:47,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:47,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:47,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:47,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:47,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:47,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:47,920 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:47,924 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:20:47,924 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:20:47,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:47,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:47,928 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) [2022-07-22 02:20:47,931 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:47,931 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:47,932 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:47,932 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 [] [2022-07-22 02:20:47,950 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 [2022-07-22 02:20:47,959 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 [2022-07-22 02:20:47,960 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:47,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:47,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:48,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:20:48,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:48,091 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 [2022-07-22 02:20:48,091 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) [2022-07-22 02:20:48,227 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. [2022-07-22 02:20:48,228 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 [2022-07-22 02:20:48,228 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) [2022-07-22 02:20:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2022-07-22 02:20:48,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 11 letters. Loop has 10 letters. [2022-07-22 02:20:48,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:48,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 21 letters. Loop has 10 letters. [2022-07-22 02:20:48,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:48,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 11 letters. Loop has 20 letters. [2022-07-22 02:20:48,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:48,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 166 transitions. [2022-07-22 02:20:48,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2022-07-22 02:20:48,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 135 states and 164 transitions. [2022-07-22 02:20:48,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-07-22 02:20:48,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-07-22 02:20:48,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 135 states and 164 transitions. [2022-07-22 02:20:48,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:48,232 INFO L369 hiAutomatonCegarLoop]: Abstraction has 135 states and 164 transitions. [2022-07-22 02:20:48,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states and 164 transitions. [2022-07-22 02:20:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 81. [2022-07-22 02:20:48,236 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) [2022-07-22 02:20:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2022-07-22 02:20:48,237 INFO L392 hiAutomatonCegarLoop]: Abstraction has 81 states and 102 transitions. [2022-07-22 02:20:48,237 INFO L374 stractBuchiCegarLoop]: Abstraction has 81 states and 102 transitions. [2022-07-22 02:20:48,237 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 02:20:48,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 102 transitions. [2022-07-22 02:20:48,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-07-22 02:20:48,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:48,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:48,239 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:48,240 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:48,240 INFO L752 eck$LassoCheckResult]: Stem: 1150#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 1151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1152#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 1153#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 1157#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 1156#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 1154#L33-1 main_~i~0#1 := 0; 1155#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1192#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1204#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1208#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1179#L35-3 [2022-07-22 02:20:48,241 INFO L754 eck$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 [2022-07-22 02:20:48,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 4 times [2022-07-22 02:20:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:48,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280183913] [2022-07-22 02:20:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:48,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:48,272 INFO L85 PathProgramCache]: Analyzing trace with hash 15031842, now seen corresponding path program 1 times [2022-07-22 02:20:48,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:48,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758156851] [2022-07-22 02:20:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:48,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:48,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash 28769428, now seen corresponding path program 2 times [2022-07-22 02:20:48,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:48,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609993417] [2022-07-22 02:20:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:48,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:48,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:48,347 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 [2022-07-22 02:20:48,398 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:48,398 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:48,398 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:48,398 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:48,398 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:48,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:48,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:48,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:48,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2022-07-22 02:20:48,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:48,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:48,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:48,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:48,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:48,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:48,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:48,466 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:48,467 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:48,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:48,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:48,468 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) [2022-07-22 02:20:48,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:48,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:48,487 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 [2022-07-22 02:20:48,501 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:48,501 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: [] [2022-07-22 02:20:48,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:48,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:48,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:48,532 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) [2022-07-22 02:20:48,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:48,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:48,546 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 [2022-07-22 02:20:48,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:48,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:48,584 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) [2022-07-22 02:20:48,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:48,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:48,589 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 [2022-07-22 02:20:49,045 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:49,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:49,051 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:49,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:49,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:49,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:49,052 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:49,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:49,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:49,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:49,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration6_Loop [2022-07-22 02:20:49,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:49,052 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:49,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:49,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:49,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:49,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:49,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:49,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:49,137 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:49,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:49,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:49,139 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) [2022-07-22 02:20:49,148 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 [2022-07-22 02:20:49,148 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 [2022-07-22 02:20:49,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:49,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:49,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:49,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:49,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:49,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:49,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:49,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:49,195 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 [2022-07-22 02:20:49,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:49,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:49,197 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) [2022-07-22 02:20:49,199 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 [2022-07-22 02:20:49,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:49,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:49,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:49,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:49,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:49,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:49,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:49,211 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 [2022-07-22 02:20:49,219 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:49,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:49,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:49,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:49,249 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) [2022-07-22 02:20:49,256 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 [2022-07-22 02:20:49,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:49,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:49,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:49,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:49,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:49,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:49,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:49,268 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 [2022-07-22 02:20:49,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:49,276 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:49,276 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:49,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:49,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:49,278 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) [2022-07-22 02:20:49,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:49,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:49,284 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:49,284 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 [] [2022-07-22 02:20:49,291 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 [2022-07-22 02:20:49,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-22 02:20:49,305 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:49,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:49,437 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 [2022-07-22 02:20:49,437 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) [2022-07-22 02:20:49,447 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. [2022-07-22 02:20:49,448 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 [2022-07-22 02:20:49,450 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) [2022-07-22 02:20:49,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-22 02:20:49,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-22 02:20:49,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:49,451 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:49,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:49,594 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 [2022-07-22 02:20:49,594 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) [2022-07-22 02:20:49,601 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 [2022-07-22 02:20:49,602 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. [2022-07-22 02:20:49,603 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 [2022-07-22 02:20:49,603 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) [2022-07-22 02:20:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-22 02:20:49,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-22 02:20:49,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:49,604 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:49,691 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 [2022-07-22 02:20:49,691 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) [2022-07-22 02:20:49,737 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. [2022-07-22 02:20:49,738 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 [2022-07-22 02:20:49,739 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) [2022-07-22 02:20:49,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2022-07-22 02:20:49,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 11 letters. Loop has 7 letters. [2022-07-22 02:20:49,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:49,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 18 letters. Loop has 7 letters. [2022-07-22 02:20:49,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:49,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 38 transitions. Stem has 11 letters. Loop has 14 letters. [2022-07-22 02:20:49,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:49,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 223 transitions. [2022-07-22 02:20:49,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2022-07-22 02:20:49,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 169 states and 207 transitions. [2022-07-22 02:20:49,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-07-22 02:20:49,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2022-07-22 02:20:49,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 207 transitions. [2022-07-22 02:20:49,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:49,744 INFO L369 hiAutomatonCegarLoop]: Abstraction has 169 states and 207 transitions. [2022-07-22 02:20:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 207 transitions. [2022-07-22 02:20:49,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 126. [2022-07-22 02:20:49,748 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) [2022-07-22 02:20:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 160 transitions. [2022-07-22 02:20:49,750 INFO L392 hiAutomatonCegarLoop]: Abstraction has 126 states and 160 transitions. [2022-07-22 02:20:49,750 INFO L374 stractBuchiCegarLoop]: Abstraction has 126 states and 160 transitions. [2022-07-22 02:20:49,750 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 02:20:49,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 160 transitions. [2022-07-22 02:20:49,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 27 [2022-07-22 02:20:49,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:49,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:49,751 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:49,752 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:49,752 INFO L752 eck$LassoCheckResult]: Stem: 1794#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);~__BLAST_NONDET~0 := 0; 1795#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post5#1, main_#t~post4#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1, main_~l~0#1, main_~m~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_~l~0#1;havoc main_~m~0#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~l~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1796#L30 assume !!(-1000000 < main_~n~0#1 && main_~n~0#1 < 1000000); 1797#L31 assume !!(-1000000 < main_~m~0#1 && main_~m~0#1 < 1000000); 1801#L32 assume !!(-1000000 < main_~l~0#1 && main_~l~0#1 < 1000000); 1800#L33 assume 3 * main_~n~0#1 <= main_~m~0#1 + main_~l~0#1; 1798#L33-1 main_~i~0#1 := 0; 1799#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1824#L35-3 assume !(main_~j~0#1 < 3 * main_~i~0#1); 1808#L34-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1809#L34-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 2 * main_~i~0#1; 1832#L35-3 [2022-07-22 02:20:49,752 INFO L754 eck$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 [2022-07-22 02:20:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:49,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 5 times [2022-07-22 02:20:49,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:49,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183780197] [2022-07-22 02:20:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:49,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:49,760 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:49,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2069021769, now seen corresponding path program 2 times [2022-07-22 02:20:49,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:49,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688638510] [2022-07-22 02:20:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:49,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:49,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:49,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688638510] [2022-07-22 02:20:49,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688638510] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 02:20:49,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684279236] [2022-07-22 02:20:49,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 02:20:49,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 02:20:49,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:49,844 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) [2022-07-22 02:20:49,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-07-22 02:20:49,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 02:20:49,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 02:20:49,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 02:20:49,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:49,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 02:20:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:50,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684279236] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 02:20:50,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 02:20:50,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-07-22 02:20:50,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354486904] [2022-07-22 02:20:50,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 02:20:50,089 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 02:20:50,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 02:20:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-07-22 02:20:50,090 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) [2022-07-22 02:20:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:50,566 INFO L93 Difference]: Finished difference Result 438 states and 528 transitions. [2022-07-22 02:20:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 02:20:50,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 438 states and 528 transitions. [2022-07-22 02:20:50,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 105 [2022-07-22 02:20:50,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 438 states to 438 states and 528 transitions. [2022-07-22 02:20:50,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2022-07-22 02:20:50,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2022-07-22 02:20:50,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 438 states and 528 transitions. [2022-07-22 02:20:50,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:50,576 INFO L369 hiAutomatonCegarLoop]: Abstraction has 438 states and 528 transitions. [2022-07-22 02:20:50,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states and 528 transitions. [2022-07-22 02:20:50,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 226. [2022-07-22 02:20:50,591 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) [2022-07-22 02:20:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 276 transitions. [2022-07-22 02:20:50,593 INFO L392 hiAutomatonCegarLoop]: Abstraction has 226 states and 276 transitions. [2022-07-22 02:20:50,593 INFO L374 stractBuchiCegarLoop]: Abstraction has 226 states and 276 transitions. [2022-07-22 02:20:50,593 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 02:20:50,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 276 transitions. [2022-07-22 02:20:50,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-07-22 02:20:50,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:50,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:50,595 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:50,597 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:50,597 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 [2022-07-22 02:20:50,597 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 [2022-07-22 02:20:50,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2088903217, now seen corresponding path program 6 times [2022-07-22 02:20:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211105848] [2022-07-22 02:20:50,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,604 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1182901838, now seen corresponding path program 3 times [2022-07-22 02:20:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166873080] [2022-07-22 02:20:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,632 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:50,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:50,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:50,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1513942172, now seen corresponding path program 3 times [2022-07-22 02:20:50,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:50,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965743903] [2022-07-22 02:20:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 02:20:50,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:50,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965743903] [2022-07-22 02:20:50,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965743903] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 02:20:50,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631639678] [2022-07-22 02:20:50,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 02:20:50,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 02:20:50,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:50,700 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) [2022-07-22 02:20:50,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-07-22 02:20:50,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-07-22 02:20:50,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 02:20:50,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:50,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:50,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 02:20:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:50,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631639678] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 02:20:50,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 02:20:50,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 15 [2022-07-22 02:20:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106589522] [2022-07-22 02:20:50,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 02:20:51,045 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:51,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:51,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:51,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:51,046 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:51,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:51,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:51,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration8_Loop [2022-07-22 02:20:51,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:51,046 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:51,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,143 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:51,143 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:51,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,145 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) [2022-07-22 02:20:51,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:51,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,173 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 [2022-07-22 02:20:51,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:51,180 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: [] [2022-07-22 02:20:51,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:51,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,207 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) [2022-07-22 02:20:51,208 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 [2022-07-22 02:20:51,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:51,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:51,231 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: [] [2022-07-22 02:20:51,258 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 [2022-07-22 02:20:51,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,260 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) [2022-07-22 02:20:51,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:51,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,274 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 [2022-07-22 02:20:51,278 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:51,278 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: [] [2022-07-22 02:20:51,294 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 [2022-07-22 02:20:51,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,296 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) [2022-07-22 02:20:51,296 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 [2022-07-22 02:20:51,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:51,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,321 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 [2022-07-22 02:20:51,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,324 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) [2022-07-22 02:20:51,325 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 [2022-07-22 02:20:51,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:51,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:51,624 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:51,629 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 [2022-07-22 02:20:51,629 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:51,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:51,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:51,630 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:51,630 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:51,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,630 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:51,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:51,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration8_Loop [2022-07-22 02:20:51,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:51,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:51,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:51,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:51,706 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:51,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,708 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) [2022-07-22 02:20:51,711 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 [2022-07-22 02:20:51,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:20:51,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:51,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,738 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) [2022-07-22 02:20:51,739 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 [2022-07-22 02:20:51,740 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 [2022-07-22 02:20:51,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:51,764 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 [2022-07-22 02:20:51,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,766 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) [2022-07-22 02:20:51,767 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 [2022-07-22 02:20:51,768 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 [2022-07-22 02:20:51,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:51,793 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 [2022-07-22 02:20:51,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,794 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) [2022-07-22 02:20:51,795 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 [2022-07-22 02:20:51,799 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 [2022-07-22 02:20:51,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:51,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:51,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:51,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:51,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:51,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:51,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:51,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:51,812 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:20:51,812 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:20:51,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:51,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:51,814 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) [2022-07-22 02:20:51,815 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 [2022-07-22 02:20:51,816 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:51,816 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:51,816 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:51,816 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 [] [2022-07-22 02:20:51,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-07-22 02:20:51,832 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:51,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:51,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:51,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 02:20:51,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:52,018 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:52,022 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 [2022-07-22 02:20:52,022 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) [2022-07-22 02:20:52,278 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 [2022-07-22 02:20:52,351 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. [2022-07-22 02:20:52,352 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 [2022-07-22 02:20:52,352 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) [2022-07-22 02:20:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 71 transitions. [2022-07-22 02:20:52,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 11 letters. Loop has 18 letters. [2022-07-22 02:20:52,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 29 letters. Loop has 18 letters. [2022-07-22 02:20:52,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 71 transitions. Stem has 11 letters. Loop has 36 letters. [2022-07-22 02:20:52,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:52,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1072 transitions. [2022-07-22 02:20:52,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 106 [2022-07-22 02:20:52,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 666 states and 803 transitions. [2022-07-22 02:20:52,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2022-07-22 02:20:52,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-07-22 02:20:52,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 666 states and 803 transitions. [2022-07-22 02:20:52,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:52,365 INFO L369 hiAutomatonCegarLoop]: Abstraction has 666 states and 803 transitions. [2022-07-22 02:20:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states and 803 transitions. [2022-07-22 02:20:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 340. [2022-07-22 02:20:52,373 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) [2022-07-22 02:20:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 419 transitions. [2022-07-22 02:20:52,375 INFO L392 hiAutomatonCegarLoop]: Abstraction has 340 states and 419 transitions. [2022-07-22 02:20:52,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 02:20:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-22 02:20:52,376 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) [2022-07-22 02:20:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:52,607 INFO L93 Difference]: Finished difference Result 882 states and 1060 transitions. [2022-07-22 02:20:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 02:20:52,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 882 states and 1060 transitions. [2022-07-22 02:20:52,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-07-22 02:20:52,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 882 states to 814 states and 980 transitions. [2022-07-22 02:20:52,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 78 [2022-07-22 02:20:52,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2022-07-22 02:20:52,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 814 states and 980 transitions. [2022-07-22 02:20:52,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:52,620 INFO L369 hiAutomatonCegarLoop]: Abstraction has 814 states and 980 transitions. [2022-07-22 02:20:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states and 980 transitions. [2022-07-22 02:20:52,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 485. [2022-07-22 02:20:52,628 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) [2022-07-22 02:20:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 591 transitions. [2022-07-22 02:20:52,630 INFO L392 hiAutomatonCegarLoop]: Abstraction has 485 states and 591 transitions. [2022-07-22 02:20:52,630 INFO L374 stractBuchiCegarLoop]: Abstraction has 485 states and 591 transitions. [2022-07-22 02:20:52,630 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-22 02:20:52,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 485 states and 591 transitions. [2022-07-22 02:20:52,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2022-07-22 02:20:52,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:52,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:52,634 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:52,634 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1] [2022-07-22 02:20:52,635 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 [2022-07-22 02:20:52,635 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 [2022-07-22 02:20:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:52,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1334545203, now seen corresponding path program 4 times [2022-07-22 02:20:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:52,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213296439] [2022-07-22 02:20:52,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:52,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 02:20:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:52,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213296439] [2022-07-22 02:20:52,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213296439] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 02:20:52,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494461140] [2022-07-22 02:20:52,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 02:20:52,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 02:20:52,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:52,690 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) [2022-07-22 02:20:52,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-07-22 02:20:52,732 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 02:20:52,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 02:20:52,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:20:52,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 02:20:52,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 02:20:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 02:20:52,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494461140] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 02:20:52,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 02:20:52,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-22 02:20:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368447907] [2022-07-22 02:20:52,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 02:20:52,878 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 02:20:52,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1426778589, now seen corresponding path program 2 times [2022-07-22 02:20:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:52,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264712420] [2022-07-22 02:20:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:52,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:52,887 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:52,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:52,964 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:52,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:52,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:52,965 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:52,965 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:52,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:52,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:52,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:52,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration9_Loop [2022-07-22 02:20:52,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:52,966 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:52,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:52,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:52,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:52,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:53,030 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:53,030 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:53,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,034 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) [2022-07-22 02:20:53,035 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 [2022-07-22 02:20:53,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:53,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:53,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:53,056 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: [] [2022-07-22 02:20:53,072 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 [2022-07-22 02:20:53,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,074 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) [2022-07-22 02:20:53,074 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 [2022-07-22 02:20:53,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:53,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:53,100 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 [2022-07-22 02:20:53,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,102 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) [2022-07-22 02:20:53,103 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 [2022-07-22 02:20:53,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:53,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:53,478 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:53,482 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 [2022-07-22 02:20:53,483 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:53,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:53,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:53,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:53,483 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:53,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:53,483 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:53,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration9_Loop [2022-07-22 02:20:53,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:53,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:53,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:53,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:53,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:53,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:53,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:53,543 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:53,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,545 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) [2022-07-22 02:20:53,546 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 [2022-07-22 02:20:53,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:20:53,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:53,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:53,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:53,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:53,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:53,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:53,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:53,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:53,593 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 [2022-07-22 02:20:53,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,595 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) [2022-07-22 02:20:53,596 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 [2022-07-22 02:20:53,598 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 [2022-07-22 02:20:53,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:53,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:53,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:53,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:53,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:53,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:53,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:53,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:53,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:20:53,617 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:53,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:53,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:53,619 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) [2022-07-22 02:20:53,620 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 [2022-07-22 02:20:53,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:53,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:53,621 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:53,621 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 [] [2022-07-22 02:20:53,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-07-22 02:20:53,638 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:53,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:53,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 02:20:53,735 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 [2022-07-22 02:20:53,735 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) [2022-07-22 02:20:53,760 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. [2022-07-22 02:20:53,761 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 [2022-07-22 02:20:53,762 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) [2022-07-22 02:20:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-22 02:20:53,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-22 02:20:53,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:53,762 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:53,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 02:20:53,845 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 [2022-07-22 02:20:53,845 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) [2022-07-22 02:20:53,865 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. [2022-07-22 02:20:53,866 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 [2022-07-22 02:20:53,866 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) [2022-07-22 02:20:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-22 02:20:53,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-22 02:20:53,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:53,867 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:53,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:53,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:53,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:53,940 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 [2022-07-22 02:20:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 02:20:53,959 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 [2022-07-22 02:20:53,959 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) [2022-07-22 02:20:53,980 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. [2022-07-22 02:20:53,981 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 [2022-07-22 02:20:53,981 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) [2022-07-22 02:20:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2022-07-22 02:20:53,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 29 letters. Loop has 11 letters. [2022-07-22 02:20:53,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:53,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 40 letters. Loop has 11 letters. [2022-07-22 02:20:53,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:53,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 29 letters. Loop has 22 letters. [2022-07-22 02:20:53,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:53,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 888 states and 1043 transitions. [2022-07-22 02:20:53,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-07-22 02:20:53,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 888 states to 656 states and 775 transitions. [2022-07-22 02:20:53,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-07-22 02:20:53,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2022-07-22 02:20:53,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 656 states and 775 transitions. [2022-07-22 02:20:53,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:53,994 INFO L369 hiAutomatonCegarLoop]: Abstraction has 656 states and 775 transitions. [2022-07-22 02:20:53,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states and 775 transitions. [2022-07-22 02:20:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 557. [2022-07-22 02:20:54,002 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) [2022-07-22 02:20:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 655 transitions. [2022-07-22 02:20:54,004 INFO L392 hiAutomatonCegarLoop]: Abstraction has 557 states and 655 transitions. [2022-07-22 02:20:54,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:54,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 02:20:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-22 02:20:54,005 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) [2022-07-22 02:20:54,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:54,114 INFO L93 Difference]: Finished difference Result 581 states and 658 transitions. [2022-07-22 02:20:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 02:20:54,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 581 states and 658 transitions. [2022-07-22 02:20:54,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 40 [2022-07-22 02:20:54,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 581 states to 260 states and 290 transitions. [2022-07-22 02:20:54,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-07-22 02:20:54,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2022-07-22 02:20:54,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 290 transitions. [2022-07-22 02:20:54,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:54,120 INFO L369 hiAutomatonCegarLoop]: Abstraction has 260 states and 290 transitions. [2022-07-22 02:20:54,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 290 transitions. [2022-07-22 02:20:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 244. [2022-07-22 02:20:54,124 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) [2022-07-22 02:20:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2022-07-22 02:20:54,125 INFO L392 hiAutomatonCegarLoop]: Abstraction has 244 states and 274 transitions. [2022-07-22 02:20:54,125 INFO L374 stractBuchiCegarLoop]: Abstraction has 244 states and 274 transitions. [2022-07-22 02:20:54,125 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-22 02:20:54,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244 states and 274 transitions. [2022-07-22 02:20:54,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 37 [2022-07-22 02:20:54,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:54,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:54,128 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:54,128 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:54,128 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 [2022-07-22 02:20:54,129 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 [2022-07-22 02:20:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1304386790, now seen corresponding path program 5 times [2022-07-22 02:20:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650697568] [2022-07-22 02:20:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:54,139 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:54,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:54,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:54,151 INFO L85 PathProgramCache]: Analyzing trace with hash 96299068, now seen corresponding path program 4 times [2022-07-22 02:20:54,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:54,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508299495] [2022-07-22 02:20:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:54,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:54,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:54,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:54,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:54,168 INFO L85 PathProgramCache]: Analyzing trace with hash -96091935, now seen corresponding path program 6 times [2022-07-22 02:20:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:54,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892948009] [2022-07-22 02:20:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 86 proven. 87 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 02:20:54,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 02:20:54,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892948009] [2022-07-22 02:20:54,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892948009] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 02:20:54,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910220584] [2022-07-22 02:20:54,268 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 02:20:54,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 02:20:54,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:54,270 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) [2022-07-22 02:20:54,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-07-22 02:20:54,322 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-07-22 02:20:54,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 02:20:54,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 02:20:54,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 95 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 02:20:54,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 02:20:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 95 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 02:20:54,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910220584] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 02:20:54,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 02:20:54,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 17 [2022-07-22 02:20:54,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374299383] [2022-07-22 02:20:54,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 02:20:54,761 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:54,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:54,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:54,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:54,762 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:54,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:54,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:54,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:54,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration10_Loop [2022-07-22 02:20:54,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:54,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:54,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:54,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:54,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:54,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:54,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:54,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:54,858 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:54,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:54,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:54,860 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) [2022-07-22 02:20:54,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:54,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:54,877 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 [2022-07-22 02:20:54,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:54,889 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: [] [2022-07-22 02:20:54,911 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 [2022-07-22 02:20:54,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:54,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:54,913 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) [2022-07-22 02:20:54,913 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 [2022-07-22 02:20:54,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:54,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:54,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:54,923 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: [] [2022-07-22 02:20:54,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:54,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:54,942 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) [2022-07-22 02:20:54,942 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 [2022-07-22 02:20:54,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:54,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:54,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:54,958 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: [] [2022-07-22 02:20:54,974 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 [2022-07-22 02:20:54,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:54,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:54,976 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) [2022-07-22 02:20:54,976 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 [2022-07-22 02:20:54,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:54,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:54,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:54,989 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: [] [2022-07-22 02:20:55,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-07-22 02:20:55,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,011 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) [2022-07-22 02:20:55,012 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 [2022-07-22 02:20:55,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:55,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:55,044 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 [2022-07-22 02:20:55,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,046 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) [2022-07-22 02:20:55,046 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 [2022-07-22 02:20:55,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:55,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:55,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:55,478 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 [2022-07-22 02:20:55,478 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:55,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:55,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:55,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:55,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:55,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:55,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:55,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration10_Loop [2022-07-22 02:20:55,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:55,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:55,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:55,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:55,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:55,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:55,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:55,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:55,587 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:55,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,589 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) [2022-07-22 02:20:55,589 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 [2022-07-22 02:20:55,591 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 [2022-07-22 02:20:55,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:55,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:55,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:55,598 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-22 02:20:55,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:55,599 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-22 02:20:55,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:55,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:55,617 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 [2022-07-22 02:20:55,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,619 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) [2022-07-22 02:20:55,620 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 [2022-07-22 02:20:55,621 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 [2022-07-22 02:20:55,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:55,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:55,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:55,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:55,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:55,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:55,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:55,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:55,646 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 [2022-07-22 02:20:55,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,647 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) [2022-07-22 02:20:55,648 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 [2022-07-22 02:20:55,650 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 [2022-07-22 02:20:55,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:55,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:55,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:55,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:55,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:55,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:55,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:55,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:55,675 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 [2022-07-22 02:20:55,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,677 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) [2022-07-22 02:20:55,677 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 [2022-07-22 02:20:55,679 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 [2022-07-22 02:20:55,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:55,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:55,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:55,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:55,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:55,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:55,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:55,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:55,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-07-22 02:20:55,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,705 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) [2022-07-22 02:20:55,705 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 [2022-07-22 02:20:55,707 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 [2022-07-22 02:20:55,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:55,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:55,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:55,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:55,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:55,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:55,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:55,718 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:55,720 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:55,721 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:55,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:55,777 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) [2022-07-22 02:20:55,778 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 [2022-07-22 02:20:55,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:55,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:55,786 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:55,787 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 [] [2022-07-22 02:20:55,809 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 [2022-07-22 02:20:55,810 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:55,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:55,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:55,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 02:20:55,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 02:20:56,040 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 [2022-07-22 02:20:56,040 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) [2022-07-22 02:20:56,097 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. [2022-07-22 02:20:56,097 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 [2022-07-22 02:20:56,098 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) [2022-07-22 02:20:56,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-07-22 02:20:56,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 34 letters. Loop has 26 letters. [2022-07-22 02:20:56,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:56,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 60 letters. Loop has 26 letters. [2022-07-22 02:20:56,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:56,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 34 letters. Loop has 52 letters. [2022-07-22 02:20:56,099 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:56,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 539 states and 617 transitions. [2022-07-22 02:20:56,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 02:20:56,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 539 states to 347 states and 393 transitions. [2022-07-22 02:20:56,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-07-22 02:20:56,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2022-07-22 02:20:56,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 393 transitions. [2022-07-22 02:20:56,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:56,105 INFO L369 hiAutomatonCegarLoop]: Abstraction has 347 states and 393 transitions. [2022-07-22 02:20:56,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 393 transitions. [2022-07-22 02:20:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 316. [2022-07-22 02:20:56,108 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) [2022-07-22 02:20:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 356 transitions. [2022-07-22 02:20:56,109 INFO L392 hiAutomatonCegarLoop]: Abstraction has 316 states and 356 transitions. [2022-07-22 02:20:56,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 02:20:56,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 02:20:56,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-07-22 02:20:56,109 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) [2022-07-22 02:20:56,351 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 [2022-07-22 02:20:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 02:20:56,494 INFO L93 Difference]: Finished difference Result 508 states and 557 transitions. [2022-07-22 02:20:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 02:20:56,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 508 states and 557 transitions. [2022-07-22 02:20:56,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 02:20:56,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 508 states to 388 states and 429 transitions. [2022-07-22 02:20:56,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-22 02:20:56,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-22 02:20:56,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 388 states and 429 transitions. [2022-07-22 02:20:56,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:20:56,500 INFO L369 hiAutomatonCegarLoop]: Abstraction has 388 states and 429 transitions. [2022-07-22 02:20:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states and 429 transitions. [2022-07-22 02:20:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 355. [2022-07-22 02:20:56,505 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) [2022-07-22 02:20:56,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 396 transitions. [2022-07-22 02:20:56,506 INFO L392 hiAutomatonCegarLoop]: Abstraction has 355 states and 396 transitions. [2022-07-22 02:20:56,506 INFO L374 stractBuchiCegarLoop]: Abstraction has 355 states and 396 transitions. [2022-07-22 02:20:56,506 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-22 02:20:56,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 355 states and 396 transitions. [2022-07-22 02:20:56,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 02:20:56,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:56,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:56,509 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:56,509 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 02:20:56,509 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 [2022-07-22 02:20:56,509 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 [2022-07-22 02:20:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:56,510 INFO L85 PathProgramCache]: Analyzing trace with hash -586107213, now seen corresponding path program 7 times [2022-07-22 02:20:56,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:56,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588112822] [2022-07-22 02:20:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,530 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:56,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2619672, now seen corresponding path program 1 times [2022-07-22 02:20:56,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:56,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385134877] [2022-07-22 02:20:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,556 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:56,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:56,560 INFO L85 PathProgramCache]: Analyzing trace with hash -474347830, now seen corresponding path program 8 times [2022-07-22 02:20:56,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:56,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569759383] [2022-07-22 02:20:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,585 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:56,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:56,639 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:56,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:56,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:56,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:56,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:56,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:56,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:56,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:56,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration11_Loop [2022-07-22 02:20:56,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:56,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:56,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:56,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:56,797 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:56,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:56,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:56,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:56,800 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) [2022-07-22 02:20:56,802 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 [2022-07-22 02:20:56,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:56,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:56,810 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:20:56,810 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: [] [2022-07-22 02:20:56,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2022-07-22 02:20:56,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:56,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:56,828 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) [2022-07-22 02:20:56,829 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 [2022-07-22 02:20:56,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:56,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:56,855 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 [2022-07-22 02:20:56,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:56,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:56,857 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) [2022-07-22 02:20:56,857 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 [2022-07-22 02:20:56,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:56,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:57,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:57,499 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 [2022-07-22 02:20:57,500 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:57,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:57,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:57,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:57,500 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:57,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:57,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:57,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:57,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested9.i_Iteration11_Loop [2022-07-22 02:20:57,500 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:57,500 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:57,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:57,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:57,684 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:57,685 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:57,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:57,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:57,686 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) [2022-07-22 02:20:57,687 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 [2022-07-22 02:20:57,688 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 [2022-07-22 02:20:57,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:57,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:57,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:57,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:57,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:57,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:57,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:57,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:20:57,713 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 [2022-07-22 02:20:57,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:57,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:57,715 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) [2022-07-22 02:20:57,715 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 [2022-07-22 02:20:57,717 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 [2022-07-22 02:20:57,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:57,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:57,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:57,724 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-07-22 02:20:57,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:57,730 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2022-07-22 02:20:57,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:57,736 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:57,743 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:20:57,744 INFO L444 ModelExtractionUtils]: 5 out of 8 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:20:57,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:57,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:57,746 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) [2022-07-22 02:20:57,747 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 [2022-07-22 02:20:57,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:57,748 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:57,748 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:57,748 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 [] [2022-07-22 02:20:57,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:57,765 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:57,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:57,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:57,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:57,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:57,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:57,866 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 [2022-07-22 02:20:57,866 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) [2022-07-22 02:20:57,893 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. [2022-07-22 02:20:57,894 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 [2022-07-22 02:20:57,894 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) [2022-07-22 02:20:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-22 02:20:57,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-22 02:20:57,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:57,895 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:57,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:57,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:57,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:57,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:58,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:58,002 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 [2022-07-22 02:20:58,002 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) [2022-07-22 02:20:58,024 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. [2022-07-22 02:20:58,025 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 [2022-07-22 02:20:58,025 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) [2022-07-22 02:20:58,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-22 02:20:58,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-22 02:20:58,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:58,026 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:20:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:58,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:58,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:58,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:20:58,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:58,122 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 [2022-07-22 02:20:58,122 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) [2022-07-22 02:20:58,145 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. [2022-07-22 02:20:58,146 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 [2022-07-22 02:20:58,146 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) [2022-07-22 02:20:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-07-22 02:20:58,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 52 letters. Loop has 4 letters. [2022-07-22 02:20:58,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:58,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 56 letters. Loop has 4 letters. [2022-07-22 02:20:58,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:58,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 52 letters. Loop has 8 letters. [2022-07-22 02:20:58,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:58,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 610 states and 658 transitions. [2022-07-22 02:20:58,152 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:58,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 610 states to 0 states and 0 transitions. [2022-07-22 02:20:58,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:20:58,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:20:58,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:20:58,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:58,152 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:58,153 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:58,153 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:58,153 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-22 02:20:58,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:20:58,153 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:58,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:20:58,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:20:58 BoogieIcfgContainer [2022-07-22 02:20:58,160 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:20:58,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:20:58,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:20:58,161 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:20:58,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:42" (3/4) ... [2022-07-22 02:20:58,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:20:58,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:20:58,165 INFO L158 Benchmark]: Toolchain (without parser) took 16185.04ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 35.2MB in the beginning and 41.2MB in the end (delta: -6.0MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-07-22 02:20:58,165 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:58,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.49ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 39.7MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 02:20:58,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.80ms. Allocated memory is still 56.6MB. Free memory was 39.7MB in the beginning and 38.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:20:58,166 INFO L158 Benchmark]: Boogie Preprocessor took 41.82ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 37.2MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:58,167 INFO L158 Benchmark]: RCFGBuilder took 318.52ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 27.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 02:20:58,167 INFO L158 Benchmark]: BuchiAutomizer took 15517.24ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 27.5MB in the beginning and 41.2MB in the end (delta: -13.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-07-22 02:20:58,167 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 121.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:58,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.49ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 39.7MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.80ms. Allocated memory is still 56.6MB. Free memory was 39.7MB in the beginning and 38.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.82ms. Allocated memory is still 56.6MB. Free memory was 38.2MB in the beginning and 37.2MB in the end (delta: 995.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.52ms. Allocated memory is still 56.6MB. Free memory was 37.1MB in the beginning and 27.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 15517.24ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 27.5MB in the beginning and 41.2MB in the end (delta: -13.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 121.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 15.4s and 12 iterations. TraceHistogramMax:7. Analysis of lassos took 10.5s. Construction of modules took 0.6s. Büchi inclusion checks took 3.8s. 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 0.1s 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, 0.7s 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: 34ms VariablesStem: 0 VariablesLoop: 8 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:20:58,205 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 [2022-07-22 02:20:58,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2022-07-22 02:20:58,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2022-07-22 02:20:58,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-07-22 02:20:59,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-07-22 02:20:59,216 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