./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2b329fcd1c2ada34efa1c491c6d8d75d6e8a1856 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 01:32:07,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:32:07,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:32:07,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:32:07,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:32:07,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:32:07,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:32:07,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:32:07,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:32:07,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:32:07,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:32:07,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:32:07,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:32:07,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:32:07,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:32:07,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:32:07,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:32:07,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:32:07,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:32:07,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:32:07,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:32:07,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:32:07,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:32:07,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:32:07,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:32:07,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:32:07,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:32:07,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:32:07,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:32:07,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:32:07,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:32:07,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:32:07,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:32:07,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:32:07,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:32:07,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:32:07,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:32:07,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:32:07,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:32:07,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:32:07,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:32:07,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:32:07,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:32:07,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:32:07,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:32:07,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:32:07,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:32:07,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:32:07,762 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:32:07,763 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:32:07,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:32:07,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:32:07,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:32:07,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:32:07,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:32:07,765 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:32:07,765 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b329fcd1c2ada34efa1c491c6d8d75d6e8a1856 [2021-08-31 01:32:08,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:32:08,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:32:08,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:32:08,037 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:32:08,038 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:32:08,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2021-08-31 01:32:08,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c30acc7/c2d13c83f7d4419a8da7b2a5c63bb042/FLAG27182cf07 [2021-08-31 01:32:08,428 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:32:08,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2021-08-31 01:32:08,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c30acc7/c2d13c83f7d4419a8da7b2a5c63bb042/FLAG27182cf07 [2021-08-31 01:32:08,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c30acc7/c2d13c83f7d4419a8da7b2a5c63bb042 [2021-08-31 01:32:08,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:32:08,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:32:08,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:08,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:32:08,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:32:08,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a27b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08, skipping insertion in model container [2021-08-31 01:32:08,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:32:08,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:32:08,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:08,563 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:32:08,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:32:08,580 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:32:08,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08 WrapperNode [2021-08-31 01:32:08,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:32:08,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:08,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:32:08,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:32:08,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:32:08,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:32:08,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:32:08,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:32:08,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:32:08,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:32:08,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:32:08,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:32:08,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (1/1) ... [2021-08-31 01:32:08,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:08,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:08,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:08,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 01:32:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:32:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:32:08,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:32:08,780 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 01:32:08,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:08 BoogieIcfgContainer [2021-08-31 01:32:08,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:32:08,783 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:32:08,783 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:32:08,785 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:32:08,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:08,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:32:08" (1/3) ... [2021-08-31 01:32:08,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cd2584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:08, skipping insertion in model container [2021-08-31 01:32:08,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:08,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:32:08" (2/3) ... [2021-08-31 01:32:08,787 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cd2584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:32:08, skipping insertion in model container [2021-08-31 01:32:08,787 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:32:08,787 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:32:08" (3/3) ... [2021-08-31 01:32:08,788 INFO L389 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2021-08-31 01:32:08,830 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:32:08,830 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:32:08,830 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:32:08,831 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:32:08,831 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:32:08,831 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:32:08,831 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:32:08,832 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:32:08,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:32:08,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:08,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:08,853 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:08,853 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:08,853 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:32:08,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:08,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-31 01:32:08,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:08,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:08,855 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:08,855 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:08,859 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 6#L18-1true [2021-08-31 01:32:08,859 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-1true assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 10#L12true assume main_~i~0 >= 10;main_~up~0 := 0; 3#L12-2true assume main_~i~0 <= 0;main_~up~0 := 1; 8#L15-1true assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6#L18-1true [2021-08-31 01:32:08,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-31 01:32:08,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478781292] [2021-08-31 01:32:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,915 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:08,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:08,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:08,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1234538, now seen corresponding path program 1 times [2021-08-31 01:32:08,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:08,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641288057] [2021-08-31 01:32:08,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:08,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:09,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:09,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641288057] [2021-08-31 01:32:09,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641288057] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:09,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:09,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:09,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237979549] [2021-08-31 01:32:09,026 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:09,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:09,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:09,050 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:09,109 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-08-31 01:32:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:09,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-08-31 01:32:09,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-31 01:32:09,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 13 transitions. [2021-08-31 01:32:09,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-31 01:32:09,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-31 01:32:09,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-08-31 01:32:09,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:32:09,117 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-08-31 01:32:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-08-31 01:32:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-31 01:32:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2021-08-31 01:32:09,133 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-08-31 01:32:09,133 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-08-31 01:32:09,133 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:32:09,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2021-08-31 01:32:09,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-31 01:32:09,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:09,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:09,134 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-31 01:32:09,134 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:09,134 INFO L791 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 38#L18-1 [2021-08-31 01:32:09,135 INFO L793 eck$LassoCheckResult]: Loop: 38#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 43#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 35#L12-2 assume !(main_~i~0 <= 0); 36#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 38#L18-1 [2021-08-31 01:32:09,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,135 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-08-31 01:32:09,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790840720] [2021-08-31 01:32:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,138 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1234602, now seen corresponding path program 1 times [2021-08-31 01:32:09,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624027095] [2021-08-31 01:32:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,149 INFO L82 PathProgramCache]: Analyzing trace with hash 29863753, now seen corresponding path program 1 times [2021-08-31 01:32:09,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378518655] [2021-08-31 01:32:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,153 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,223 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:09,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:09,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:09,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:09,232 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:09,233 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,233 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:09,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:09,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2021-08-31 01:32:09,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:09,233 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:09,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,339 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:09,340 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:09,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-31 01:32:09,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,390 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-31 01:32:09,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-31 01:32:09,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,481 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 [2021-08-31 01:32:09,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-31 01:32:09,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:09,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:09,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-31 01:32:09,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:09,528 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,554 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-31 01:32:09,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:09,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:09,581 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:09,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,598 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:09,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:09,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:09,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:09,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:09,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:09,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:09,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2021-08-31 01:32:09,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:09,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:09,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:09,656 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:09,659 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:09,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,661 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-31 01:32:09,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:09,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:09,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-08-31 01:32:09,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-31 01:32:09,712 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 [2021-08-31 01:32:09,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:09,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:09,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,746 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-31 01:32:09,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:09,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:09,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:09,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:09,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,780 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-31 01:32:09,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:09,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:09,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:09,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:09,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:09,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:09,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:09,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:09,797 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:09,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:09,800 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:09,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:09,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:09,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-31 01:32:09,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:09,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:09,823 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:09,823 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:09,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:09,841 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:09,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:09,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:09,916 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 [2021-08-31 01:32:09,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-31 01:32:09,950 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 24 states and 36 transitions. Complement of second has 7 states. [2021-08-31 01:32:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-31 01:32:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-08-31 01:32:09,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-31 01:32:09,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-31 01:32:09,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2021-08-31 01:32:09,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:09,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-08-31 01:32:09,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-31 01:32:09,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 36 transitions. [2021-08-31 01:32:09,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-31 01:32:09,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-31 01:32:09,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 36 transitions. [2021-08-31 01:32:09,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:09,955 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 36 transitions. [2021-08-31 01:32:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 36 transitions. [2021-08-31 01:32:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-08-31 01:32:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 22 states have internal predecessors, (34), 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) [2021-08-31 01:32:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-08-31 01:32:09,957 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-08-31 01:32:09,957 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-08-31 01:32:09,958 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 01:32:09,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 34 transitions. [2021-08-31 01:32:09,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-08-31 01:32:09,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:09,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:09,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:32:09,958 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:09,959 INFO L791 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 116#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12 [2021-08-31 01:32:09,959 INFO L793 eck$LassoCheckResult]: Loop: 112#L12 assume !(main_~i~0 >= 10); 119#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 129#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 111#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 112#L12 [2021-08-31 01:32:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-31 01:32:09,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840525738] [2021-08-31 01:32:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,962 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:09,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:09,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1389492, now seen corresponding path program 1 times [2021-08-31 01:32:09,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:09,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737651235] [2021-08-31 01:32:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:09,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:09,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:09,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737651235] [2021-08-31 01:32:09,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737651235] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:09,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:09,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:09,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27940937] [2021-08-31 01:32:09,975 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:09,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:09,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:09,976 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:10,023 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2021-08-31 01:32:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:10,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2021-08-31 01:32:10,025 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2021-08-31 01:32:10,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 40 transitions. [2021-08-31 01:32:10,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-08-31 01:32:10,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-08-31 01:32:10,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 40 transitions. [2021-08-31 01:32:10,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:10,025 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 40 transitions. [2021-08-31 01:32:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 40 transitions. [2021-08-31 01:32:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-08-31 01:32:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 states have internal predecessors, (39), 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) [2021-08-31 01:32:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2021-08-31 01:32:10,030 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2021-08-31 01:32:10,030 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2021-08-31 01:32:10,030 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 01:32:10,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2021-08-31 01:32:10,033 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2021-08-31 01:32:10,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:10,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:10,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:32:10,033 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:10,033 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 170#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 178#L12 [2021-08-31 01:32:10,033 INFO L793 eck$LassoCheckResult]: Loop: 178#L12 assume !(main_~i~0 >= 10); 185#L12-2 assume !(main_~i~0 <= 0); 190#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 187#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 178#L12 [2021-08-31 01:32:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 2 times [2021-08-31 01:32:10,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625615837] [2021-08-31 01:32:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1391414, now seen corresponding path program 1 times [2021-08-31 01:32:10,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878201878] [2021-08-31 01:32:10,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,063 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,070 INFO L82 PathProgramCache]: Analyzing trace with hash 925835935, now seen corresponding path program 1 times [2021-08-31 01:32:10,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309571457] [2021-08-31 01:32:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,076 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,084 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,110 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,111 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:10,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration4_Loop [2021-08-31 01:32:10,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,159 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:10,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,177 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-31 01:32:10,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-31 01:32:10,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,273 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,273 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,292 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-31 01:32:10,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-31 01:32:10,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-08-31 01:32:10,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,373 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-31 01:32:10,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:10,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,399 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:10,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,434 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:10,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,435 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration4_Loop [2021-08-31 01:32:10,435 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,435 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,478 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:10,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,481 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:10,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:10,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:10,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-31 01:32:10,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:10,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,573 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-31 01:32:10,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:10,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:10,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:10,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:10,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:10,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,618 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-31 01:32:10,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:10,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:10,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:10,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:10,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,681 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-31 01:32:10,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:10,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:10,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:10,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:10,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:10,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:10,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:10,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:10,693 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:10,694 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-31 01:32:10,694 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:10,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,707 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-31 01:32:10,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:10,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:10,710 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:10,710 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:10,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,728 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:10,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:10,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:10,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:10,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:10,809 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:32:10,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 15. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 68 transitions. Complement of second has 7 states. [2021-08-31 01:32:10,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-08-31 01:32:10,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 01:32:10,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2021-08-31 01:32:10,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2021-08-31 01:32:10,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:10,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 68 transitions. [2021-08-31 01:32:10,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-08-31 01:32:10,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 37 states and 55 transitions. [2021-08-31 01:32:10,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-08-31 01:32:10,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-08-31 01:32:10,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 55 transitions. [2021-08-31 01:32:10,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:10,833 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 55 transitions. [2021-08-31 01:32:10,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 55 transitions. [2021-08-31 01:32:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-08-31 01:32:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 29 states have internal predecessors, (44), 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) [2021-08-31 01:32:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2021-08-31 01:32:10,836 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-08-31 01:32:10,836 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 44 transitions. [2021-08-31 01:32:10,836 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-31 01:32:10,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 44 transitions. [2021-08-31 01:32:10,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-08-31 01:32:10,836 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:10,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:10,837 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 01:32:10,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:10,837 INFO L791 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 289#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 299#L12 assume !(main_~i~0 >= 10); 292#L12-2 [2021-08-31 01:32:10,837 INFO L793 eck$LassoCheckResult]: Loop: 292#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 290#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 284#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 285#L12 assume !(main_~i~0 >= 10); 292#L12-2 [2021-08-31 01:32:10,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,838 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-08-31 01:32:10,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062017398] [2021-08-31 01:32:10,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,841 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,842 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1513900, now seen corresponding path program 1 times [2021-08-31 01:32:10,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426174554] [2021-08-31 01:32:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,846 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,848 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:10,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1363918576, now seen corresponding path program 1 times [2021-08-31 01:32:10,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:10,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588646779] [2021-08-31 01:32:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:10,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,852 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:10,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:10,877 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:10,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:10,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:10,877 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:10,877 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:10,877 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,877 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:10,877 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:10,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration5_Loop [2021-08-31 01:32:10,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:10,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:10,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:10,915 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:10,916 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:10,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,917 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-31 01:32:10,948 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:10,948 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:10,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,966 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:10,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-31 01:32:10,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:10,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:10,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:10,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:10,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:10,995 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-31 01:32:11,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:11,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,029 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:11,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,032 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:11,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration5_Loop [2021-08-31 01:32:11,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,074 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,075 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:11,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,075 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-31 01:32:11,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:11,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:11,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:11,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:11,101 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:11,101 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:11,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,102 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-31 01:32:11,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:11,104 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:11,104 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:11,104 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2021-08-31 01:32:11,119 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 [2021-08-31 01:32:11,119 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:11,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,172 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:32:11,172 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 44 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 44 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 108 transitions. Complement of second has 7 states. [2021-08-31 01:32:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-08-31 01:32:11,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-31 01:32:11,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-08-31 01:32:11,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-08-31 01:32:11,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 108 transitions. [2021-08-31 01:32:11,195 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-08-31 01:32:11,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 98 transitions. [2021-08-31 01:32:11,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-08-31 01:32:11,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-08-31 01:32:11,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 98 transitions. [2021-08-31 01:32:11,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,196 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 98 transitions. [2021-08-31 01:32:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 98 transitions. [2021-08-31 01:32:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2021-08-31 01:32:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5) internal successors, (84), 55 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) [2021-08-31 01:32:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2021-08-31 01:32:11,199 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 84 transitions. [2021-08-31 01:32:11,199 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 84 transitions. [2021-08-31 01:32:11,200 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-31 01:32:11,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 84 transitions. [2021-08-31 01:32:11,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2021-08-31 01:32:11,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:11,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:11,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:32:11,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:11,201 INFO L791 eck$LassoCheckResult]: Stem: 440#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 441#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 450#L12 assume !(main_~i~0 >= 10); 454#L12-2 assume !(main_~i~0 <= 0); 433#L15-1 [2021-08-31 01:32:11,201 INFO L793 eck$LassoCheckResult]: Loop: 433#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 436#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 437#L12 assume !(main_~i~0 >= 10); 432#L12-2 assume !(main_~i~0 <= 0); 433#L15-1 [2021-08-31 01:32:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash 963408, now seen corresponding path program 1 times [2021-08-31 01:32:11,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415659255] [2021-08-31 01:32:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,204 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1678392, now seen corresponding path program 1 times [2021-08-31 01:32:11,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131553467] [2021-08-31 01:32:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,209 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,211 INFO L82 PathProgramCache]: Analyzing trace with hash 670044167, now seen corresponding path program 1 times [2021-08-31 01:32:11,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955268170] [2021-08-31 01:32:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:11,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955268170] [2021-08-31 01:32:11,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955268170] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:11,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:11,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-31 01:32:11,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731266555] [2021-08-31 01:32:11,258 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 [2021-08-31 01:32:11,262 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:11,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2021-08-31 01:32:11,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,263 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,321 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,321 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:11,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,337 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-31 01:32:11,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,389 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-31 01:32:11,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:11,391 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,477 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:11,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,480 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,481 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:11,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2021-08-31 01:32:11,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,530 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:11,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,531 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-31 01:32:11,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:11,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:11,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:11,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:11,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:11,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:11,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:11,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:11,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:11,556 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:11,556 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:11,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,557 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-31 01:32:11,559 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:11,559 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:11,559 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:11,559 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17 Supporting invariants [] [2021-08-31 01:32:11,576 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 [2021-08-31 01:32:11,576 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:11,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,628 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 01:32:11,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 84 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 84 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 155 states and 227 transitions. Complement of second has 7 states. [2021-08-31 01:32:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-08-31 01:32:11,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-31 01:32:11,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2021-08-31 01:32:11,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2021-08-31 01:32:11,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:11,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 227 transitions. [2021-08-31 01:32:11,670 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 43 [2021-08-31 01:32:11,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 151 states and 219 transitions. [2021-08-31 01:32:11,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-08-31 01:32:11,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2021-08-31 01:32:11,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 219 transitions. [2021-08-31 01:32:11,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,672 INFO L681 BuchiCegarLoop]: Abstraction has 151 states and 219 transitions. [2021-08-31 01:32:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 219 transitions. [2021-08-31 01:32:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 125. [2021-08-31 01:32:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.512) internal successors, (189), 124 states have internal predecessors, (189), 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) [2021-08-31 01:32:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 189 transitions. [2021-08-31 01:32:11,678 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 189 transitions. [2021-08-31 01:32:11,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:32:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:32:11,678 INFO L87 Difference]: Start difference. First operand 125 states and 189 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:11,688 INFO L93 Difference]: Finished difference Result 97 states and 129 transitions. [2021-08-31 01:32:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:32:11,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 129 transitions. [2021-08-31 01:32:11,689 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2021-08-31 01:32:11,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 83 states and 115 transitions. [2021-08-31 01:32:11,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-08-31 01:32:11,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-08-31 01:32:11,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 115 transitions. [2021-08-31 01:32:11,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:11,690 INFO L681 BuchiCegarLoop]: Abstraction has 83 states and 115 transitions. [2021-08-31 01:32:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 115 transitions. [2021-08-31 01:32:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2021-08-31 01:32:11,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 77 states have internal predecessors, (110), 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) [2021-08-31 01:32:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2021-08-31 01:32:11,693 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 110 transitions. [2021-08-31 01:32:11,693 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 110 transitions. [2021-08-31 01:32:11,693 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-08-31 01:32:11,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 110 transitions. [2021-08-31 01:32:11,694 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-08-31 01:32:11,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:11,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:11,694 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-08-31 01:32:11,694 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:11,694 INFO L791 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 924#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 976#L12 assume !(main_~i~0 >= 10); 974#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 964#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 968#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 969#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 915#L12-2 [2021-08-31 01:32:11,694 INFO L793 eck$LassoCheckResult]: Loop: 915#L12-2 assume !(main_~i~0 <= 0); 916#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 919#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 920#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 915#L12-2 [2021-08-31 01:32:11,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1363918578, now seen corresponding path program 1 times [2021-08-31 01:32:11,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429472972] [2021-08-31 01:32:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:11,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:11,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429472972] [2021-08-31 01:32:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429472972] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:11,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:11,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:11,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565623217] [2021-08-31 01:32:11,708 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:11,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:11,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1575402, now seen corresponding path program 2 times [2021-08-31 01:32:11,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:11,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441578186] [2021-08-31 01:32:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:11,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,711 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:11,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:11,735 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,735 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:11,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2021-08-31 01:32:11,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,735 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:11,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:11,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:11,772 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:11,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,774 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-31 01:32:11,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,796 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,797 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=0} Honda state: {ULTIMATE.start_main_~up~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,816 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-31 01:32:11,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,840 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-08-31 01:32:11,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,856 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-31 01:32:11,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,869 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:11,869 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:11,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,888 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-31 01:32:11,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:11,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:11,914 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:11,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-31 01:32:11,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:11,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:11,994 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:11,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:11,999 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:11,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:11,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:11,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:11,999 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:11,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:11,999 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:11,999 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:11,999 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2021-08-31 01:32:11,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:11,999 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,068 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:12,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,069 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:12,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:12,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-31 01:32:12,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,151 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-31 01:32:12,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:12,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,206 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-31 01:32:12,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,219 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:12,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:12,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,237 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-31 01:32:12,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:12,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:12,261 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-31 01:32:12,261 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:12,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,262 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:12,265 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:12,265 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:12,265 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:12,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-31 01:32:12,281 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 [2021-08-31 01:32:12,281 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:12,331 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 [2021-08-31 01:32:12,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 110 transitions. cyclomatic complexity: 43 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) [2021-08-31 01:32:12,352 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 110 transitions. cyclomatic complexity: 43. 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 148 states and 199 transitions. Complement of second has 7 states. [2021-08-31 01:32:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:12,354 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) [2021-08-31 01:32:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-08-31 01:32:12,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2021-08-31 01:32:12,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-08-31 01:32:12,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2021-08-31 01:32:12,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:12,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 199 transitions. [2021-08-31 01:32:12,355 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 25 [2021-08-31 01:32:12,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 121 states and 162 transitions. [2021-08-31 01:32:12,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2021-08-31 01:32:12,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2021-08-31 01:32:12,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 162 transitions. [2021-08-31 01:32:12,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:12,356 INFO L681 BuchiCegarLoop]: Abstraction has 121 states and 162 transitions. [2021-08-31 01:32:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 162 transitions. [2021-08-31 01:32:12,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 101. [2021-08-31 01:32:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.386138613861386) internal successors, (140), 100 states have internal predecessors, (140), 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) [2021-08-31 01:32:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 140 transitions. [2021-08-31 01:32:12,360 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 140 transitions. [2021-08-31 01:32:12,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-31 01:32:12,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-31 01:32:12,360 INFO L87 Difference]: Start difference. First operand 101 states and 140 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:12,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:12,374 INFO L93 Difference]: Finished difference Result 135 states and 179 transitions. [2021-08-31 01:32:12,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-31 01:32:12,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 179 transitions. [2021-08-31 01:32:12,375 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2021-08-31 01:32:12,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 128 states and 168 transitions. [2021-08-31 01:32:12,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-08-31 01:32:12,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-08-31 01:32:12,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 168 transitions. [2021-08-31 01:32:12,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:12,376 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 168 transitions. [2021-08-31 01:32:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 168 transitions. [2021-08-31 01:32:12,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 109. [2021-08-31 01:32:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 108 states have internal predecessors, (142), 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) [2021-08-31 01:32:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 142 transitions. [2021-08-31 01:32:12,379 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 142 transitions. [2021-08-31 01:32:12,379 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 142 transitions. [2021-08-31 01:32:12,379 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-08-31 01:32:12,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 142 transitions. [2021-08-31 01:32:12,380 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 23 [2021-08-31 01:32:12,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:12,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:12,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-08-31 01:32:12,380 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:12,380 INFO L791 eck$LassoCheckResult]: Stem: 1438#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 1439#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1441#L12 assume !(main_~i~0 >= 10); 1505#L12-2 assume !(main_~i~0 <= 0); 1524#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 1522#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1471#L12 assume !(main_~i~0 >= 10); 1472#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 1491#L15-1 [2021-08-31 01:32:12,380 INFO L793 eck$LassoCheckResult]: Loop: 1491#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 1495#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 1494#L12 assume !(main_~i~0 >= 10); 1477#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 1491#L15-1 [2021-08-31 01:32:12,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,381 INFO L82 PathProgramCache]: Analyzing trace with hash 670103747, now seen corresponding path program 1 times [2021-08-31 01:32:12,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348960105] [2021-08-31 01:32:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,384 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,386 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1678390, now seen corresponding path program 2 times [2021-08-31 01:32:12,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665740390] [2021-08-31 01:32:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,388 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:12,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1635542008, now seen corresponding path program 1 times [2021-08-31 01:32:12,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:12,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617377458] [2021-08-31 01:32:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:12,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-31 01:32:12,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:12,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617377458] [2021-08-31 01:32:12,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617377458] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:32:12,406 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:32:12,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 01:32:12,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625223363] [2021-08-31 01:32:12,426 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:12,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:12,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:12,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:12,426 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:12,426 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,426 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:12,426 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:12,426 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2021-08-31 01:32:12,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:12,426 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:12,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,458 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) [2021-08-31 01:32:12,459 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 [2021-08-31 01:32:12,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,473 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,473 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,488 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 [2021-08-31 01:32:12,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,489 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) [2021-08-31 01:32:12,489 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 [2021-08-31 01:32:12,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,502 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,502 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,518 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 [2021-08-31 01:32:12,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,518 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) [2021-08-31 01:32:12,519 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 [2021-08-31 01:32:12,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,532 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:12,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:12,547 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 [2021-08-31 01:32:12,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,548 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) [2021-08-31 01:32:12,548 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 [2021-08-31 01:32:12,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:12,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,597 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) [2021-08-31 01:32:12,613 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 [2021-08-31 01:32:12,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:12,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:12,652 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:12,654 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 [2021-08-31 01:32:12,655 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:12,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:12,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:12,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:12,655 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:12,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:12,655 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:12,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2021-08-31 01:32:12,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:12,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:12,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:12,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:12,710 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:12,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,711 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) [2021-08-31 01:32:12,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:12,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,747 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 [2021-08-31 01:32:12,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,779 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) [2021-08-31 01:32:12,780 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 [2021-08-31 01:32:12,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:12,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:12,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,839 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 [2021-08-31 01:32:12,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,840 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:12,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-31 01:32:12,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:12,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:12,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:12,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-08-31 01:32:12,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,881 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) [2021-08-31 01:32:12,882 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 [2021-08-31 01:32:12,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:12,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:12,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:12,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:12,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:12,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:12,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:12,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:12,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:12,906 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:12,906 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:12,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:12,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:12,907 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) [2021-08-31 01:32:12,908 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 [2021-08-31 01:32:12,909 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:12,909 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:12,909 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:12,909 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:12,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:12,924 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:12,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:12,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:12,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:12,973 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 [2021-08-31 01:32:12,973 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 142 transitions. cyclomatic complexity: 46 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-08-31 01:32:13,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 142 transitions. cyclomatic complexity: 46. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 215 states and 277 transitions. Complement of second has 7 states. [2021-08-31 01:32:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-08-31 01:32:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-08-31 01:32:13,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 4 letters. [2021-08-31 01:32:13,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 12 letters. Loop has 4 letters. [2021-08-31 01:32:13,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 8 letters. [2021-08-31 01:32:13,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 277 transitions. [2021-08-31 01:32:13,019 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 32 [2021-08-31 01:32:13,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 187 states and 239 transitions. [2021-08-31 01:32:13,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-08-31 01:32:13,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-08-31 01:32:13,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 239 transitions. [2021-08-31 01:32:13,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,020 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 239 transitions. [2021-08-31 01:32:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 239 transitions. [2021-08-31 01:32:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 167. [2021-08-31 01:32:13,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.3053892215568863) internal successors, (218), 166 states have internal predecessors, (218), 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) [2021-08-31 01:32:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 218 transitions. [2021-08-31 01:32:13,024 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 218 transitions. [2021-08-31 01:32:13,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:13,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-31 01:32:13,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-31 01:32:13,024 INFO L87 Difference]: Start difference. First operand 167 states and 218 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,049 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 [2021-08-31 01:32:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:13,056 INFO L93 Difference]: Finished difference Result 162 states and 201 transitions. [2021-08-31 01:32:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-31 01:32:13,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 201 transitions. [2021-08-31 01:32:13,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 28 [2021-08-31 01:32:13,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 110 states and 138 transitions. [2021-08-31 01:32:13,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2021-08-31 01:32:13,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2021-08-31 01:32:13,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 138 transitions. [2021-08-31 01:32:13,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,060 INFO L681 BuchiCegarLoop]: Abstraction has 110 states and 138 transitions. [2021-08-31 01:32:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 138 transitions. [2021-08-31 01:32:13,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 83. [2021-08-31 01:32:13,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 82 states have internal predecessors, (103), 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) [2021-08-31 01:32:13,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 103 transitions. [2021-08-31 01:32:13,065 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 103 transitions. [2021-08-31 01:32:13,065 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 103 transitions. [2021-08-31 01:32:13,065 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-08-31 01:32:13,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 103 transitions. [2021-08-31 01:32:13,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2021-08-31 01:32:13,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:13,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:13,066 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-08-31 01:32:13,067 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1, 1] [2021-08-31 01:32:13,067 INFO L791 eck$LassoCheckResult]: Stem: 2157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2158#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2171#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 2174#L12-2 assume !(main_~i~0 <= 0); 2173#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 2170#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2161#L12 assume !(main_~i~0 >= 10); 2162#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 2218#L15-1 [2021-08-31 01:32:13,067 INFO L793 eck$LassoCheckResult]: Loop: 2218#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 2153#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2154#L12 assume !(main_~i~0 >= 10); 2219#L12-2 assume !(main_~i~0 <= 0); 2220#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 2229#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2228#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 2149#L12-2 assume !(main_~i~0 <= 0); 2150#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 2223#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2222#L12 assume !(main_~i~0 >= 10); 2221#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 2218#L15-1 [2021-08-31 01:32:13,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,067 INFO L82 PathProgramCache]: Analyzing trace with hash 612845445, now seen corresponding path program 1 times [2021-08-31 01:32:13,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581343114] [2021-08-31 01:32:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581343114] [2021-08-31 01:32:13,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581343114] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134878927] [2021-08-31 01:32:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,089 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-08-31 01:32:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134878927] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:13,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:13,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-08-31 01:32:13,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62720246] [2021-08-31 01:32:13,135 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:13,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1192554916, now seen corresponding path program 1 times [2021-08-31 01:32:13,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866874237] [2021-08-31 01:32:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:13,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866874237] [2021-08-31 01:32:13,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866874237] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121889598] [2021-08-31 01:32:13,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,151 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-08-31 01:32:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:13,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-31 01:32:13,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121889598] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:13,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:13,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-08-31 01:32:13,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632239116] [2021-08-31 01:32:13,210 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:13,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:13,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 01:32:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-31 01:32:13,211 INFO L87 Difference]: Start difference. First operand 83 states and 103 transitions. cyclomatic complexity: 28 Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2021-08-31 01:32:13,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:13,233 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2021-08-31 01:32:13,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 01:32:13,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 150 transitions. [2021-08-31 01:32:13,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-08-31 01:32:13,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 112 states and 136 transitions. [2021-08-31 01:32:13,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-08-31 01:32:13,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-08-31 01:32:13,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 136 transitions. [2021-08-31 01:32:13,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,236 INFO L681 BuchiCegarLoop]: Abstraction has 112 states and 136 transitions. [2021-08-31 01:32:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 136 transitions. [2021-08-31 01:32:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 91. [2021-08-31 01:32:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 90 states have internal predecessors, (111), 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) [2021-08-31 01:32:13,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 111 transitions. [2021-08-31 01:32:13,238 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 111 transitions. [2021-08-31 01:32:13,238 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 111 transitions. [2021-08-31 01:32:13,238 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-08-31 01:32:13,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 111 transitions. [2021-08-31 01:32:13,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2021-08-31 01:32:13,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:13,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:13,239 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2021-08-31 01:32:13,239 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-31 01:32:13,239 INFO L791 eck$LassoCheckResult]: Stem: 2480#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 2481#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2551#L12 assume !(main_~i~0 >= 10); 2490#L12-2 assume !(main_~i~0 <= 0); 2557#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 2558#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2564#L12 assume !(main_~i~0 >= 10); 2566#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 2565#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 2482#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2483#L12 assume !(main_~i~0 >= 10); 2476#L12-2 [2021-08-31 01:32:13,239 INFO L793 eck$LassoCheckResult]: Loop: 2476#L12-2 assume !(main_~i~0 <= 0); 2477#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 2491#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 2550#L12 assume !(main_~i~0 >= 10); 2476#L12-2 [2021-08-31 01:32:13,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,239 INFO L82 PathProgramCache]: Analyzing trace with hash 52759419, now seen corresponding path program 2 times [2021-08-31 01:32:13,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444631566] [2021-08-31 01:32:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,243 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1573482, now seen corresponding path program 2 times [2021-08-31 01:32:13,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476346255] [2021-08-31 01:32:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,248 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1971928860, now seen corresponding path program 3 times [2021-08-31 01:32:13,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414387403] [2021-08-31 01:32:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,254 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:13,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:13,273 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:13,273 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:13,273 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:13,273 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:13,274 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:13,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:13,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:13,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration10_Loop [2021-08-31 01:32:13,274 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:13,274 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:13,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,302 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:13,302 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:13,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,318 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) [2021-08-31 01:32:13,353 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 [2021-08-31 01:32:13,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:13,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:13,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,401 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) [2021-08-31 01:32:13,402 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 [2021-08-31 01:32:13,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:13,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:13,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:13,433 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 [2021-08-31 01:32:13,433 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:13,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:13,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:13,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:13,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:13,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:13,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:13,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration10_Loop [2021-08-31 01:32:13,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:13,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:13,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:13,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:13,471 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:13,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,472 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-31 01:32:13,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:13,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:13,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:13,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:13,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:13,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:13,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:13,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:13,483 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:13,484 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:13,484 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 01:32:13,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:13,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,485 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) [2021-08-31 01:32:13,486 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 [2021-08-31 01:32:13,487 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:13,487 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:13,487 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:13,487 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17 Supporting invariants [] [2021-08-31 01:32:13,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-31 01:32:13,502 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:13,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,572 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 [2021-08-31 01:32:13,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 131 states and 156 transitions. Complement of second has 7 states. [2021-08-31 01:32:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-31 01:32:13,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2021-08-31 01:32:13,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,601 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:13,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,642 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 [2021-08-31 01:32:13,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 131 states and 156 transitions. Complement of second has 7 states. [2021-08-31 01:32:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-31 01:32:13,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2021-08-31 01:32:13,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,669 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-31 01:32:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,708 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 [2021-08-31 01:32:13,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,731 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 111 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 152 states and 180 transitions. Complement of second has 8 states. [2021-08-31 01:32:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-08-31 01:32:13,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-08-31 01:32:13,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-08-31 01:32:13,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-08-31 01:32:13,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:13,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 180 transitions. [2021-08-31 01:32:13,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 34 [2021-08-31 01:32:13,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 111 states and 133 transitions. [2021-08-31 01:32:13,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-08-31 01:32:13,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-08-31 01:32:13,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 133 transitions. [2021-08-31 01:32:13,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:13,735 INFO L681 BuchiCegarLoop]: Abstraction has 111 states and 133 transitions. [2021-08-31 01:32:13,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 133 transitions. [2021-08-31 01:32:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 78. [2021-08-31 01:32:13,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 77 states have internal predecessors, (96), 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) [2021-08-31 01:32:13,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2021-08-31 01:32:13,737 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 96 transitions. [2021-08-31 01:32:13,737 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 96 transitions. [2021-08-31 01:32:13,737 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-08-31 01:32:13,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 96 transitions. [2021-08-31 01:32:13,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-08-31 01:32:13,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:13,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:13,738 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 4, 1, 1, 1, 1] [2021-08-31 01:32:13,738 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 5, 4, 2, 1, 1] [2021-08-31 01:32:13,738 INFO L791 eck$LassoCheckResult]: Stem: 3167#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 3168#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3166#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 3232#L12-2 assume !(main_~i~0 <= 0); 3231#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3230#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3229#L12 assume !(main_~i~0 >= 10); 3228#L12-2 assume !(main_~i~0 <= 0); 3226#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3224#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3222#L12 assume !(main_~i~0 >= 10); 3220#L12-2 assume !(main_~i~0 <= 0); 3218#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3216#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3210#L12 assume !(main_~i~0 >= 10); 3213#L12-2 assume !(main_~i~0 <= 0); 3211#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3209#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3207#L12 assume !(main_~i~0 >= 10); 3183#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 3199#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 3202#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3200#L12 assume !(main_~i~0 >= 10); 3198#L12-2 assume !(main_~i~0 <= 0); 3175#L15-1 [2021-08-31 01:32:13,738 INFO L793 eck$LassoCheckResult]: Loop: 3175#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 3163#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3164#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 3172#L12-2 assume !(main_~i~0 <= 0); 3169#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3170#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3236#L12 assume !(main_~i~0 >= 10); 3227#L12-2 assume !(main_~i~0 <= 0); 3225#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3223#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3221#L12 assume !(main_~i~0 >= 10); 3219#L12-2 assume !(main_~i~0 <= 0); 3217#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3215#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3214#L12 assume !(main_~i~0 >= 10); 3212#L12-2 assume !(main_~i~0 <= 0); 3205#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3208#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3206#L12 assume !(main_~i~0 >= 10); 3204#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 3199#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 3202#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3200#L12 assume !(main_~i~0 >= 10); 3198#L12-2 assume !(main_~i~0 <= 0); 3175#L15-1 [2021-08-31 01:32:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,739 INFO L82 PathProgramCache]: Analyzing trace with hash 828663963, now seen corresponding path program 1 times [2021-08-31 01:32:13,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369156157] [2021-08-31 01:32:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369156157] [2021-08-31 01:32:13,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369156157] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012213752] [2021-08-31 01:32:13,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,767 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-08-31 01:32:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:13,902 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 27 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012213752] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:13,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:13,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-08-31 01:32:13,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124086411] [2021-08-31 01:32:13,903 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 01:32:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:13,904 INFO L82 PathProgramCache]: Analyzing trace with hash -779498109, now seen corresponding path program 2 times [2021-08-31 01:32:13,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:13,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708093827] [2021-08-31 01:32:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:13,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:13,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:13,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708093827] [2021-08-31 01:32:13,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708093827] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:13,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047210217] [2021-08-31 01:32:13,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 01:32:13,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:13,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:13,942 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:13,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 01:32:13,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:13,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:32:13,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:13,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-08-31 01:32:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:14,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 01:32:14,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047210217] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:14,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:14,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-08-31 01:32:14,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970026310] [2021-08-31 01:32:14,077 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 01:32:14,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-31 01:32:14,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-31 01:32:14,078 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. cyclomatic complexity: 24 Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2021-08-31 01:32:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:14,138 INFO L93 Difference]: Finished difference Result 317 states and 376 transitions. [2021-08-31 01:32:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-31 01:32:14,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 376 transitions. [2021-08-31 01:32:14,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 104 [2021-08-31 01:32:14,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 299 states and 352 transitions. [2021-08-31 01:32:14,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-08-31 01:32:14,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2021-08-31 01:32:14,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 352 transitions. [2021-08-31 01:32:14,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:14,142 INFO L681 BuchiCegarLoop]: Abstraction has 299 states and 352 transitions. [2021-08-31 01:32:14,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 352 transitions. [2021-08-31 01:32:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 214. [2021-08-31 01:32:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 214 states have (on average 1.205607476635514) internal successors, (258), 213 states have internal predecessors, (258), 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) [2021-08-31 01:32:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-08-31 01:32:14,145 INFO L704 BuchiCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-08-31 01:32:14,145 INFO L587 BuchiCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-08-31 01:32:14,145 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-08-31 01:32:14,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 258 transitions. [2021-08-31 01:32:14,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2021-08-31 01:32:14,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:14,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:14,147 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 10, 1, 1, 1] [2021-08-31 01:32:14,147 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [12, 11, 11, 10, 2, 1, 1] [2021-08-31 01:32:14,147 INFO L791 eck$LassoCheckResult]: Stem: 3863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 3864#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3862#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 3973#L12-2 assume !(main_~i~0 <= 0); 3971#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3968#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3866#L12 assume !(main_~i~0 >= 10); 3867#L12-2 assume !(main_~i~0 <= 0); 4005#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4003#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3868#L12 assume !(main_~i~0 >= 10); 3869#L12-2 assume !(main_~i~0 <= 0); 4000#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3999#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3998#L12 assume !(main_~i~0 >= 10); 3997#L12-2 assume !(main_~i~0 <= 0); 3996#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3995#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3994#L12 assume !(main_~i~0 >= 10); 3993#L12-2 assume !(main_~i~0 <= 0); 3992#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3991#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3990#L12 assume !(main_~i~0 >= 10); 3989#L12-2 assume !(main_~i~0 <= 0); 3988#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3987#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3986#L12 assume !(main_~i~0 >= 10); 3985#L12-2 assume !(main_~i~0 <= 0); 3984#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3983#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3982#L12 assume !(main_~i~0 >= 10); 3981#L12-2 assume !(main_~i~0 <= 0); 3980#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3979#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3978#L12 assume !(main_~i~0 >= 10); 3977#L12-2 assume !(main_~i~0 <= 0); 3976#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3975#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3970#L12 assume !(main_~i~0 >= 10); 3974#L12-2 assume !(main_~i~0 <= 0); 3972#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3969#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3921#L12 assume !(main_~i~0 >= 10); 3922#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 4002#L15-1 [2021-08-31 01:32:14,148 INFO L793 eck$LassoCheckResult]: Loop: 4002#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 4036#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3965#L12 assume !(main_~i~0 >= 10); 3966#L12-2 assume !(main_~i~0 <= 0); 3928#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 3926#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3918#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 3919#L12-2 assume !(main_~i~0 <= 0); 4068#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4067#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3920#L12 assume !(main_~i~0 >= 10); 3855#L12-2 assume !(main_~i~0 <= 0); 3856#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 3865#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 3967#L12 assume !(main_~i~0 >= 10); 4066#L12-2 assume !(main_~i~0 <= 0); 4065#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4064#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4063#L12 assume !(main_~i~0 >= 10); 4062#L12-2 assume !(main_~i~0 <= 0); 4061#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4060#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4059#L12 assume !(main_~i~0 >= 10); 4058#L12-2 assume !(main_~i~0 <= 0); 4057#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4056#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4055#L12 assume !(main_~i~0 >= 10); 4054#L12-2 assume !(main_~i~0 <= 0); 4053#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4052#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4051#L12 assume !(main_~i~0 >= 10); 4050#L12-2 assume !(main_~i~0 <= 0); 4049#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4048#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4047#L12 assume !(main_~i~0 >= 10); 4046#L12-2 assume !(main_~i~0 <= 0); 4045#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4044#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4043#L12 assume !(main_~i~0 >= 10); 4042#L12-2 assume !(main_~i~0 <= 0); 4041#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4040#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4039#L12 assume !(main_~i~0 >= 10); 4038#L12-2 assume !(main_~i~0 <= 0); 4037#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 4035#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 4033#L12 assume !(main_~i~0 >= 10); 4034#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 4002#L15-1 [2021-08-31 01:32:14,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1244253986, now seen corresponding path program 2 times [2021-08-31 01:32:14,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243814584] [2021-08-31 01:32:14,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,154 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:14,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1107487295, now seen corresponding path program 3 times [2021-08-31 01:32:14,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476203488] [2021-08-31 01:32:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,166 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:14,172 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:14,173 INFO L82 PathProgramCache]: Analyzing trace with hash -429277470, now seen corresponding path program 2 times [2021-08-31 01:32:14,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:14,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215891223] [2021-08-31 01:32:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:14,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:14,202 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 587 proven. 3 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:14,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:14,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215891223] [2021-08-31 01:32:14,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215891223] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:14,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454619991] [2021-08-31 01:32:14,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-31 01:32:14,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:14,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,204 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:14,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-08-31 01:32:14,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-31 01:32:14,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:14,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 01:32:14,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 587 proven. 3 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:14,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 587 proven. 3 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:14,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454619991] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:14,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:14,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-08-31 01:32:14,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087280978] [2021-08-31 01:32:14,667 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:14,667 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:14,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:14,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:14,667 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:14,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:14,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:14,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration12_Loop [2021-08-31 01:32:14,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:14,668 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:14,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,703 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:14,703 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:14,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,705 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) [2021-08-31 01:32:14,706 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 [2021-08-31 01:32:14,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:14,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:14,724 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:14,725 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:14,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:14,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,740 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) [2021-08-31 01:32:14,741 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 [2021-08-31 01:32:14,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:14,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:14,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:14,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:14,767 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 [2021-08-31 01:32:14,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,768 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) [2021-08-31 01:32:14,769 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 [2021-08-31 01:32:14,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:14,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:14,788 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:14,788 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0=1} Honda state: {ULTIMATE.start_main_~up~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:14,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:14,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,804 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) [2021-08-31 01:32:14,804 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 [2021-08-31 01:32:14,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:14,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:14,826 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 [2021-08-31 01:32:14,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,827 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) [2021-08-31 01:32:14,828 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 [2021-08-31 01:32:14,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:14,829 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:14,836 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:14,851 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 [2021-08-31 01:32:14,851 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:14,851 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:14,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:14,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:14,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:14,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:14,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:14,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration12_Loop [2021-08-31 01:32:14,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:14,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:14,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:14,894 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:14,894 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:14,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,896 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) [2021-08-31 01:32:14,896 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 [2021-08-31 01:32:14,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:14,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:14,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:14,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:14,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:14,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:14,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:14,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:14,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:14,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,937 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) [2021-08-31 01:32:14,938 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 [2021-08-31 01:32:14,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:14,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:14,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:14,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:14,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:14,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:14,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:14,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:14,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:14,975 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 [2021-08-31 01:32:14,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:14,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:14,975 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) [2021-08-31 01:32:14,976 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 [2021-08-31 01:32:14,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:14,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:14,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:14,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:14,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:14,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:14,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:14,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:14,999 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:15,000 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:15,000 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:15,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:15,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:15,001 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) [2021-08-31 01:32:15,002 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 [2021-08-31 01:32:15,003 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:15,003 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:15,003 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:15,003 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:15,018 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 [2021-08-31 01:32:15,018 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:15,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:15,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:15,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:15,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:32:15,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:15,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:15,200 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-31 01:32:15,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 214 states and 258 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:15,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 214 states and 258 transitions. cyclomatic complexity: 49. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 493 states and 601 transitions. Complement of second has 15 states. [2021-08-31 01:32:15,284 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 [2021-08-31 01:32:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 01:32:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 36 transitions. [2021-08-31 01:32:15,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 48 letters. [2021-08-31 01:32:15,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:15,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 92 letters. Loop has 48 letters. [2021-08-31 01:32:15,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:15,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 96 letters. [2021-08-31 01:32:15,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:15,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 493 states and 601 transitions. [2021-08-31 01:32:15,288 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2021-08-31 01:32:15,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 493 states to 439 states and 521 transitions. [2021-08-31 01:32:15,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2021-08-31 01:32:15,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-08-31 01:32:15,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 439 states and 521 transitions. [2021-08-31 01:32:15,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:15,290 INFO L681 BuchiCegarLoop]: Abstraction has 439 states and 521 transitions. [2021-08-31 01:32:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states and 521 transitions. [2021-08-31 01:32:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 427. [2021-08-31 01:32:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 427 states have (on average 1.189695550351288) internal successors, (508), 426 states have internal predecessors, (508), 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) [2021-08-31 01:32:15,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 508 transitions. [2021-08-31 01:32:15,294 INFO L704 BuchiCegarLoop]: Abstraction has 427 states and 508 transitions. [2021-08-31 01:32:15,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:15,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-31 01:32:15,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-31 01:32:15,294 INFO L87 Difference]: Start difference. First operand 427 states and 508 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-08-31 01:32:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:15,322 INFO L93 Difference]: Finished difference Result 268 states and 287 transitions. [2021-08-31 01:32:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 01:32:15,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 268 states and 287 transitions. [2021-08-31 01:32:15,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2021-08-31 01:32:15,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 268 states to 225 states and 243 transitions. [2021-08-31 01:32:15,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 136 [2021-08-31 01:32:15,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 136 [2021-08-31 01:32:15,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 243 transitions. [2021-08-31 01:32:15,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:15,324 INFO L681 BuchiCegarLoop]: Abstraction has 225 states and 243 transitions. [2021-08-31 01:32:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 243 transitions. [2021-08-31 01:32:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 211. [2021-08-31 01:32:15,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.080568720379147) internal successors, (228), 210 states have internal predecessors, (228), 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) [2021-08-31 01:32:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 228 transitions. [2021-08-31 01:32:15,327 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 228 transitions. [2021-08-31 01:32:15,327 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 228 transitions. [2021-08-31 01:32:15,327 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-08-31 01:32:15,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 228 transitions. [2021-08-31 01:32:15,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2021-08-31 01:32:15,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:15,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:15,328 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [11, 10, 10, 10, 1, 1, 1] [2021-08-31 01:32:15,328 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2021-08-31 01:32:15,328 INFO L791 eck$LassoCheckResult]: Stem: 6130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 6131#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6139#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 6187#L12-2 assume !(main_~i~0 <= 0); 6194#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6192#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6191#L12 assume !(main_~i~0 >= 10); 6128#L12-2 assume !(main_~i~0 <= 0); 6129#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6134#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6135#L12 assume !(main_~i~0 >= 10); 6137#L12-2 assume !(main_~i~0 <= 0); 6303#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6301#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6299#L12 assume !(main_~i~0 >= 10); 6297#L12-2 assume !(main_~i~0 <= 0); 6295#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6293#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6291#L12 assume !(main_~i~0 >= 10); 6289#L12-2 assume !(main_~i~0 <= 0); 6287#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6285#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6283#L12 assume !(main_~i~0 >= 10); 6281#L12-2 assume !(main_~i~0 <= 0); 6279#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6277#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6275#L12 assume !(main_~i~0 >= 10); 6273#L12-2 assume !(main_~i~0 <= 0); 6271#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6269#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6267#L12 assume !(main_~i~0 >= 10); 6265#L12-2 assume !(main_~i~0 <= 0); 6263#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6261#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6259#L12 assume !(main_~i~0 >= 10); 6257#L12-2 assume !(main_~i~0 <= 0); 6255#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6253#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6247#L12 assume !(main_~i~0 >= 10); 6250#L12-2 assume !(main_~i~0 <= 0); 6249#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6246#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6244#L12 assume !(main_~i~0 >= 10); 6195#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 6196#L15-1 [2021-08-31 01:32:15,328 INFO L793 eck$LassoCheckResult]: Loop: 6196#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6310#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6308#L12 assume !(main_~i~0 >= 10); 6309#L12-2 assume !(main_~i~0 <= 0); 6311#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6321#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6320#L12 assume !(main_~i~0 >= 10); 6319#L12-2 assume !(main_~i~0 <= 0); 6318#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6317#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6316#L12 assume !(main_~i~0 >= 10); 6315#L12-2 assume !(main_~i~0 <= 0); 6314#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6313#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6312#L12 assume !(main_~i~0 >= 10); 6126#L12-2 assume !(main_~i~0 <= 0); 6127#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6132#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6133#L12 assume !(main_~i~0 >= 10); 6136#L12-2 assume !(main_~i~0 <= 0); 6240#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 6239#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6238#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 6235#L12-2 assume !(main_~i~0 <= 0); 6237#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6236#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6234#L12 assume !(main_~i~0 >= 10); 6233#L12-2 assume !(main_~i~0 <= 0); 6232#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6231#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6230#L12 assume !(main_~i~0 >= 10); 6229#L12-2 assume !(main_~i~0 <= 0); 6228#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6227#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6226#L12 assume !(main_~i~0 >= 10); 6225#L12-2 assume !(main_~i~0 <= 0); 6224#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6223#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6222#L12 assume !(main_~i~0 >= 10); 6221#L12-2 assume !(main_~i~0 <= 0); 6220#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6219#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6218#L12 assume !(main_~i~0 >= 10); 6217#L12-2 assume !(main_~i~0 <= 0); 6216#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6215#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6214#L12 assume !(main_~i~0 >= 10); 6213#L12-2 assume !(main_~i~0 <= 0); 6212#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6211#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6210#L12 assume !(main_~i~0 >= 10); 6209#L12-2 assume !(main_~i~0 <= 0); 6208#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6207#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6206#L12 assume !(main_~i~0 >= 10); 6205#L12-2 assume !(main_~i~0 <= 0); 6204#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6203#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6202#L12 assume !(main_~i~0 >= 10); 6201#L12-2 assume !(main_~i~0 <= 0); 6198#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 6200#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 6199#L12 assume !(main_~i~0 >= 10); 6197#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 6196#L15-1 [2021-08-31 01:32:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:15,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1244253986, now seen corresponding path program 3 times [2021-08-31 01:32:15,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:15,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749411763] [2021-08-31 01:32:15,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:15,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:15,333 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:15,337 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:15,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1930483299, now seen corresponding path program 4 times [2021-08-31 01:32:15,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:15,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49457051] [2021-08-31 01:32:15,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:15,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:15,341 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:15,346 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:15,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:15,347 INFO L82 PathProgramCache]: Analyzing trace with hash -422612802, now seen corresponding path program 3 times [2021-08-31 01:32:15,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:15,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713760239] [2021-08-31 01:32:15,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:15,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 923 proven. 55 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:15,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:32:15,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713760239] [2021-08-31 01:32:15,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713760239] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-31 01:32:15,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863499099] [2021-08-31 01:32:15,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-31 01:32:15,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-31 01:32:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:15,399 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-31 01:32:15,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-08-31 01:32:15,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-08-31 01:32:15,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-31 01:32:15,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-31 01:32:15,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 923 proven. 55 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:15,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-31 01:32:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 923 proven. 55 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2021-08-31 01:32:15,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863499099] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-31 01:32:15,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-31 01:32:15,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2021-08-31 01:32:15,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116377115] [2021-08-31 01:32:15,897 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:15,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:15,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:15,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:15,897 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 01:32:15,897 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:15,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:15,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:15,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration13_Loop [2021-08-31 01:32:15,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:15,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:15,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:15,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:15,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:15,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:15,939 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:15,940 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 01:32:15,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:15,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:15,940 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) [2021-08-31 01:32:15,941 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 [2021-08-31 01:32:15,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:15,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:15,963 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 01:32:15,963 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 01:32:15,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:15,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:15,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:15,979 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) [2021-08-31 01:32:15,980 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 [2021-08-31 01:32:15,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 01:32:15,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:16,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-08-31 01:32:16,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:16,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:16,016 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) [2021-08-31 01:32:16,017 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 [2021-08-31 01:32:16,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 01:32:16,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 01:32:16,039 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 01:32:16,053 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 [2021-08-31 01:32:16,054 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:32:16,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:32:16,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:32:16,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:32:16,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:32:16,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:16,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:32:16,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:32:16,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration13_Loop [2021-08-31 01:32:16,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:32:16,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:32:16,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:16,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:16,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:16,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:32:16,090 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:32:16,090 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:32:16,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:16,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:16,090 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) [2021-08-31 01:32:16,091 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 [2021-08-31 01:32:16,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:16,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:16,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:16,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:16,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:16,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:32:16,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:32:16,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:32:16,129 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 [2021-08-31 01:32:16,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:16,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:16,130 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:16,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-08-31 01:32:16,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:32:16,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:32:16,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:32:16,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:32:16,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:32:16,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:32:16,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:32:16,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:32:16,153 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:32:16,154 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 01:32:16,154 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 01:32:16,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:32:16,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:32:16,156 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 01:32:16,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-08-31 01:32:16,157 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:32:16,157 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 01:32:16,157 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:32:16,157 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-31 01:32:16,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:16,172 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 01:32:16,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:16,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:32:16,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:32:16,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-31 01:32:16,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:32:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-08-31 01:32:16,398 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2021-08-31 01:32:16,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 211 states and 228 transitions. cyclomatic complexity: 23 Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 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) [2021-08-31 01:32:16,590 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 211 states and 228 transitions. cyclomatic complexity: 23. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 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) Result 874 states and 927 transitions. Complement of second has 31 states. [2021-08-31 01:32:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2021-08-31 01:32:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 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) [2021-08-31 01:32:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 72 transitions. [2021-08-31 01:32:16,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 44 letters. Loop has 64 letters. [2021-08-31 01:32:16,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:16,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 108 letters. Loop has 64 letters. [2021-08-31 01:32:16,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:16,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 72 transitions. Stem has 44 letters. Loop has 128 letters. [2021-08-31 01:32:16,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:32:16,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 874 states and 927 transitions. [2021-08-31 01:32:16,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 84 [2021-08-31 01:32:16,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 874 states to 660 states and 711 transitions. [2021-08-31 01:32:16,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-08-31 01:32:16,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 203 [2021-08-31 01:32:16,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 660 states and 711 transitions. [2021-08-31 01:32:16,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:16,612 INFO L681 BuchiCegarLoop]: Abstraction has 660 states and 711 transitions. [2021-08-31 01:32:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states and 711 transitions. [2021-08-31 01:32:16,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 640. [2021-08-31 01:32:16,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 640 states have (on average 1.078125) internal successors, (690), 639 states have internal predecessors, (690), 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) [2021-08-31 01:32:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 690 transitions. [2021-08-31 01:32:16,630 INFO L704 BuchiCegarLoop]: Abstraction has 640 states and 690 transitions. [2021-08-31 01:32:16,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:32:16,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-31 01:32:16,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-31 01:32:16,630 INFO L87 Difference]: Start difference. First operand 640 states and 690 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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) [2021-08-31 01:32:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:32:16,684 INFO L93 Difference]: Finished difference Result 350 states and 363 transitions. [2021-08-31 01:32:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-31 01:32:16,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 363 transitions. [2021-08-31 01:32:16,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2021-08-31 01:32:16,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 280 states and 293 transitions. [2021-08-31 01:32:16,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2021-08-31 01:32:16,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 272 [2021-08-31 01:32:16,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 280 states and 293 transitions. [2021-08-31 01:32:16,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 01:32:16,688 INFO L681 BuchiCegarLoop]: Abstraction has 280 states and 293 transitions. [2021-08-31 01:32:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states and 293 transitions. [2021-08-31 01:32:16,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 169. [2021-08-31 01:32:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 169 states have (on average 1.0769230769230769) internal successors, (182), 168 states have internal predecessors, (182), 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) [2021-08-31 01:32:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 182 transitions. [2021-08-31 01:32:16,690 INFO L704 BuchiCegarLoop]: Abstraction has 169 states and 182 transitions. [2021-08-31 01:32:16,690 INFO L587 BuchiCegarLoop]: Abstraction has 169 states and 182 transitions. [2021-08-31 01:32:16,690 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-08-31 01:32:16,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 182 transitions. [2021-08-31 01:32:16,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 80 [2021-08-31 01:32:16,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:32:16,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:32:16,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-08-31 01:32:16,691 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2021-08-31 01:32:16,691 INFO L791 eck$LassoCheckResult]: Stem: 9258#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~up~0;havoc main_~i~0;havoc main_~up~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~up~0 := 0; 9259#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9265#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 9266#L12-2 assume !(main_~i~0 <= 0); 9262#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9263#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9384#L12 assume !(main_~i~0 >= 10); 9250#L12-2 [2021-08-31 01:32:16,691 INFO L793 eck$LassoCheckResult]: Loop: 9250#L12-2 assume !(main_~i~0 <= 0); 9251#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9381#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9380#L12 assume !(main_~i~0 >= 10); 9379#L12-2 assume !(main_~i~0 <= 0); 9378#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9377#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9376#L12 assume !(main_~i~0 >= 10); 9375#L12-2 assume !(main_~i~0 <= 0); 9374#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9373#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9372#L12 assume !(main_~i~0 >= 10); 9371#L12-2 assume !(main_~i~0 <= 0); 9370#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9369#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9368#L12 assume !(main_~i~0 >= 10); 9367#L12-2 assume !(main_~i~0 <= 0); 9366#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9365#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9364#L12 assume !(main_~i~0 >= 10); 9363#L12-2 assume !(main_~i~0 <= 0); 9362#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9361#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9360#L12 assume !(main_~i~0 >= 10); 9359#L12-2 assume !(main_~i~0 <= 0); 9358#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9357#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9356#L12 assume !(main_~i~0 >= 10); 9355#L12-2 assume !(main_~i~0 <= 0); 9354#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9353#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9352#L12 assume !(main_~i~0 >= 10); 9351#L12-2 assume !(main_~i~0 <= 0); 9350#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9349#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9348#L12 assume !(main_~i~0 >= 10); 9346#L12-2 assume main_~i~0 <= 0;main_~up~0 := 1; 9345#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9254#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9255#L12 assume !(main_~i~0 >= 10); 9264#L12-2 assume !(main_~i~0 <= 0); 9347#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9418#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9417#L12 assume !(main_~i~0 >= 10); 9416#L12-2 assume !(main_~i~0 <= 0); 9415#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9414#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9413#L12 assume !(main_~i~0 >= 10); 9412#L12-2 assume !(main_~i~0 <= 0); 9411#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9410#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9409#L12 assume !(main_~i~0 >= 10); 9408#L12-2 assume !(main_~i~0 <= 0); 9407#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9406#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9405#L12 assume !(main_~i~0 >= 10); 9404#L12-2 assume !(main_~i~0 <= 0); 9403#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9402#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9401#L12 assume !(main_~i~0 >= 10); 9400#L12-2 assume !(main_~i~0 <= 0); 9399#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9398#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9397#L12 assume !(main_~i~0 >= 10); 9396#L12-2 assume !(main_~i~0 <= 0); 9395#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9394#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9393#L12 assume !(main_~i~0 >= 10); 9392#L12-2 assume !(main_~i~0 <= 0); 9391#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9390#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9389#L12 assume !(main_~i~0 >= 10); 9388#L12-2 assume !(main_~i~0 <= 0); 9387#L15-1 assume main_~up~0 >= 1;main_~i~0 := 1 + main_~i~0; 9386#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9382#L12 assume main_~i~0 >= 10;main_~up~0 := 0; 9383#L12-2 assume !(main_~i~0 <= 0); 9260#L15-1 assume !(main_~up~0 >= 1);main_~i~0 := main_~i~0 - 1; 9261#L18-1 assume !!(0 <= main_~i~0 && main_~i~0 <= 10); 9385#L12 assume !(main_~i~0 >= 10); 9250#L12-2 [2021-08-31 01:32:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:16,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1365704114, now seen corresponding path program 1 times [2021-08-31 01:32:16,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:16,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026156230] [2021-08-31 01:32:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:16,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,693 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:16,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1260641161, now seen corresponding path program 5 times [2021-08-31 01:32:16,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:16,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592870437] [2021-08-31 01:32:16,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:16,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,700 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:32:16,705 INFO L82 PathProgramCache]: Analyzing trace with hash -689456170, now seen corresponding path program 4 times [2021-08-31 01:32:16,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:32:16,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189878883] [2021-08-31 01:32:16,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:32:16,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:32:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,710 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:32:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:32:16,716 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:32:17,000 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 01:32:17,002 INFO L158 Benchmark]: Toolchain (without parser) took 8555.84ms. Allocated memory was 56.6MB in the beginning and 121.6MB in the end (delta: 65.0MB). Free memory was 34.8MB in the beginning and 76.6MB in the end (delta: -41.9MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,002 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:32:17,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.10ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 26.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.07ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.7MB in the end (delta: -14.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,003 INFO L158 Benchmark]: Boogie Preprocessor took 15.07ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 40.7MB in the beginning and 52.7MB in the end (delta: -12.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,003 INFO L158 Benchmark]: RCFGBuilder took 150.01ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 45.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,003 INFO L158 Benchmark]: BuchiAutomizer took 8218.61ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 45.3MB in the beginning and 76.6MB in the end (delta: -31.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2021-08-31 01:32:17,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.10ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 26.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.07ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.7MB in the end (delta: -14.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.07ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 40.7MB in the beginning and 52.7MB in the end (delta: -12.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 150.01ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 45.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 8218.61ms. Allocated memory was 69.2MB in the beginning and 121.6MB in the end (delta: 52.4MB). Free memory was 45.3MB in the beginning and 76.6MB in the end (delta: -31.3MB). Peak memory consumption was 57.4MB. 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 18 terminating modules (9 trivial, 8 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 17 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 8 locations. One deterministic module has affine ranking function i and consists of 16 locations. One nondeterministic module has affine ranking function -2 * i + 17 and consists of 4 locations. 9 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 169 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 01:32:17,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:17,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:17,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:17,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-08-31 01:32:17,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:18,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-08-31 01:32:18,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...