./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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/UpAndDown.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 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:53:00,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:53:00,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:53:00,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:53:00,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:53:00,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:53:00,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:53:00,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:53:00,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:53:00,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:53:00,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:53:00,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:53:00,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:53:00,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:53:00,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:53:00,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:53:00,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:53:00,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:53:00,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:53:00,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:53:00,853 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:53:00,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:53:00,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:53:00,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:53:00,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:53:00,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:53:00,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:53:00,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:53:00,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:53:00,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:53:00,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:53:00,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:53:00,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:53:00,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:53:00,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:53:00,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:53:00,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:53:00,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:53:00,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:53:00,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:53:00,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:53:00,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:53:00,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:53:00,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:53:00,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:53:00,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:53:00,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:53:00,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:53:00,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:53:00,902 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:53:00,902 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:53:00,902 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:53:00,903 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:53:00,903 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:53:00,903 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:53:00,903 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:53:00,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:53:00,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:53:00,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:53:00,905 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:53:00,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:53:00,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:53:00,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:53:00,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:53:00,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:53:00,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:53:00,907 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:53:00,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2022-07-14 14:53:01,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:53:01,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:53:01,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:53:01,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:53:01,148 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:53:01,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-14 14:53:01,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e938fcfa/852829701016403f8d6c5b408cc8e71f/FLAGa4efdb919 [2022-07-14 14:53:01,567 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:53:01,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-14 14:53:01,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e938fcfa/852829701016403f8d6c5b408cc8e71f/FLAGa4efdb919 [2022-07-14 14:53:01,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e938fcfa/852829701016403f8d6c5b408cc8e71f [2022-07-14 14:53:01,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:53:01,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:53:01,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:53:01,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:53:01,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:53:01,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4c79ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01, skipping insertion in model container [2022-07-14 14:53:01,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:53:01,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:53:01,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:53:01,745 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:53:01,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:53:01,766 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:53:01,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01 WrapperNode [2022-07-14 14:53:01,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:53:01,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:53:01,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:53:01,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:53:01,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,787 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-14 14:53:01,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:53:01,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:53:01,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:53:01,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:53:01,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:53:01,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:53:01,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:53:01,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:53:01,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (1/1) ... [2022-07-14 14:53:01,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:01,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:01,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:01,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 14:53:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:53:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:53:01,921 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:53:01,922 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:53:01,974 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:53:01,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:53:01,979 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:53:01,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:53:01 BoogieIcfgContainer [2022-07-14 14:53:01,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:53:01,981 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:53:01,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:53:01,984 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:53:01,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:53:01,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:53:01" (1/3) ... [2022-07-14 14:53:01,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@777cc97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:53:01, skipping insertion in model container [2022-07-14 14:53:01,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:53:01,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:53:01" (2/3) ... [2022-07-14 14:53:01,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@777cc97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:53:01, skipping insertion in model container [2022-07-14 14:53:01,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:53:01,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:53:01" (3/3) ... [2022-07-14 14:53:01,987 INFO L354 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2022-07-14 14:53:02,033 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:53:02,033 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:53:02,033 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:53:02,034 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:53:02,034 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:53:02,034 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:53:02,034 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:53:02,034 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:53:02,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:02,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-14 14:53:02,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:02,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:02,055 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:53:02,055 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:02,055 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:53:02,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:02,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-14 14:53:02,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:02,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:02,058 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:53:02,058 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:02,064 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5#L18-1true [2022-07-14 14:53:02,064 INFO L754 eck$LassoCheckResult]: Loop: 5#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(10 == main_~i~0#1); 2#L12-2true assume 0 == main_~i~0#1;main_~up~0#1 := 1; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5#L18-1true [2022-07-14 14:53:02,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:02,076 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 14:53:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:02,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457405682] [2022-07-14 14:53:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:02,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,152 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:02,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-07-14 14:53:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:02,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292030126] [2022-07-14 14:53:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,194 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:02,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:02,208 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-07-14 14:53:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:02,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201985432] [2022-07-14 14:53:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,220 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:02,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:02,353 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:02,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:02,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:02,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:02,354 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:02,354 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:02,355 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:02,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-14 14:53:02,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:02,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:02,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:02,478 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:02,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-14 14:53:02,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:02,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:02,510 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:02,510 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: [] [2022-07-14 14:53:02,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-14 14:53:02,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:02,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:02,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:02,558 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: [] [2022-07-14 14:53:02,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-14 14:53:02,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:02,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:02,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,611 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-14 14:53:02,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:02,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:02,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:02,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,667 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:02,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:02,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:02,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:02,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:02,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:02,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:02,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-14 14:53:02,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:02,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:02,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:02,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:02,739 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:02,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-14 14:53:02,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:02,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:02,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:02,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:02,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:02,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:02,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:02,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:02,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:02,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,790 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-14 14:53:02,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:02,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:02,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:02,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:02,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:02,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:02,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:02,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:02,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-14 14:53:02,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:02,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:02,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:02,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:02,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:02,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:02,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:02,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:02,904 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 [2022-07-14 14:53:02,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-14 14:53:02,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:02,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:02,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:02,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:02,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:02,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:02,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:02,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:02,932 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:02,937 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:02,937 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:02,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:02,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:02,941 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:02,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-14 14:53:02,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:02,977 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:02,977 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:02,977 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-14 14:53:02,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:02,996 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:03,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:03,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:03,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:03,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:03,079 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:03,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-07-14 14:53:03,124 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 36 states and 54 transitions. Complement of second has 8 states. [2022-07-14 14:53:03,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-07-14 14:53:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-14 14:53:03,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-14 14:53:03,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-14 14:53:03,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-14 14:53:03,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-07-14 14:53:03,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-14 14:53:03,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-07-14 14:53:03,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-14 14:53:03,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-14 14:53:03,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-07-14 14:53:03,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:03,140 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-07-14 14:53:03,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-07-14 14:53:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-07-14 14:53:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:03,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-07-14 14:53:03,161 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-14 14:53:03,161 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-14 14:53:03,161 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 14:53:03,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-07-14 14:53:03,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-14 14:53:03,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:03,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:03,163 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-14 14:53:03,163 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:03,163 INFO L752 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 99#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 104#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-14 14:53:03,163 INFO L754 eck$LassoCheckResult]: Loop: 106#L12 assume !(10 == main_~i~0#1); 92#L12-2 assume !(0 == main_~i~0#1); 94#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 108#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-14 14:53:03,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-14 14:53:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891109757] [2022-07-14 14:53:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:03,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-07-14 14:53:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538313365] [2022-07-14 14:53:03,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-07-14 14:53:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392811573] [2022-07-14 14:53:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392811573] [2022-07-14 14:53:03,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392811573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:53:03,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:53:03,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:53:03,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942585056] [2022-07-14 14:53:03,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:53:03,240 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:03,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:03,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:03,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:03,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:03,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:03,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:03,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-14 14:53:03,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:03,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:03,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:03,317 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:03,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:03,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:03,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-14 14:53:03,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:03,360 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: [] [2022-07-14 14:53:03,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,386 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-14 14:53:03,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:03,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:03,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,438 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-14 14:53:03,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:03,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:03,541 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:03,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,549 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:03,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:03,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:03,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:03,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:03,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:03,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:03,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-14 14:53:03,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:03,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:03,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:03,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:03,641 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:03,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,644 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-14 14:53:03,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:03,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:03,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:03,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:03,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:03,667 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:03,667 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:03,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:03,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,700 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-14 14:53:03,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:03,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:03,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:03,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:03,708 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-14 14:53:03,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:03,710 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-14 14:53:03,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:03,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:03,739 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:03,740 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:03,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:03,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:03,743 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:03,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:03,748 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:03,748 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:03,748 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-14 14:53:03,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-14 14:53:03,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,780 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:03,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:03,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:03,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:03,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:03,845 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:03,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 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) [2022-07-14 14:53:03,869 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. 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 28 states and 43 transitions. Complement of second has 7 states. [2022-07-14 14:53:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:03,870 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) [2022-07-14 14:53:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-14 14:53:03,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-14 14:53:03,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-14 14:53:03,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-14 14:53:03,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:03,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2022-07-14 14:53:03,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-14 14:53:03,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2022-07-14 14:53:03,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-14 14:53:03,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-14 14:53:03,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2022-07-14 14:53:03,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:03,881 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2022-07-14 14:53:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2022-07-14 14:53:03,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-14 14:53:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.7) internal successors, (34), 19 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) [2022-07-14 14:53:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2022-07-14 14:53:03,883 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2022-07-14 14:53:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:03,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:53:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:53:03,886 INFO L87 Difference]: Start difference. First operand 20 states and 34 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-07-14 14:53:03,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-14 14:53:03,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:03,928 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2022-07-14 14:53:03,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:53:03,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2022-07-14 14:53:03,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-14 14:53:03,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2022-07-14 14:53:03,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-14 14:53:03,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-14 14:53:03,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2022-07-14 14:53:03,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:03,939 INFO L369 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2022-07-14 14:53:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2022-07-14 14:53:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-07-14 14:53:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2022-07-14 14:53:03,943 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-14 14:53:03,943 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-14 14:53:03,943 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 14:53:03,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2022-07-14 14:53:03,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-14 14:53:03,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:03,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:03,945 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-14 14:53:03,945 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:03,946 INFO L752 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 242#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 249#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 254#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 236#L12-2 assume !(0 == main_~i~0#1); 238#L15-1 [2022-07-14 14:53:03,946 INFO L754 eck$LassoCheckResult]: Loop: 238#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 247#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 258#L12 assume !(10 == main_~i~0#1); 256#L12-2 assume !(0 == main_~i~0#1); 238#L15-1 [2022-07-14 14:53:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,946 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-14 14:53:03,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938904353] [2022-07-14 14:53:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:03,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-07-14 14:53:03,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888862644] [2022-07-14 14:53:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,972 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:03,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:03,982 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-07-14 14:53:03,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:03,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199698928] [2022-07-14 14:53:03,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:03,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:03,990 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:04,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:04,033 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:04,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:04,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:04,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:04,034 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:04,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:04,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:04,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-14 14:53:04,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:04,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:04,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:04,121 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:04,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,124 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-14 14:53:04,146 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:04,146 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: [] [2022-07-14 14:53:04,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,163 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-14 14:53:04,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,180 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:04,180 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:04,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-14 14:53:04,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,196 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-14 14:53:04,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,223 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-14 14:53:04,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:04,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,306 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:04,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,309 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:04,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:04,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:04,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:04,310 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:04,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:04,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:04,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-14 14:53:04,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:04,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:04,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,398 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:04,398 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:04,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:04,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:04,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:04,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:04,408 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-14 14:53:04,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:04,409 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-14 14:53:04,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:04,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-14 14:53:04,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:04,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,445 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:04,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:04,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:04,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:04,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:04,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:04,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:04,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:04,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-14 14:53:04,471 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:04,473 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-14 14:53:04,473 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:04,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,474 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-14 14:53:04,476 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:04,476 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:04,476 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:04,476 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-14 14:53:04,499 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 [2022-07-14 14:53:04,500 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:04,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:04,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:04,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:04,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:04,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:04,564 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-14 14:53:04,564 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:04,595 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 65 states and 104 transitions. Complement of second has 7 states. [2022-07-14 14:53:04,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-14 14:53:04,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-14 14:53:04,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:04,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-14 14:53:04,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:04,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-07-14 14:53:04,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:04,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2022-07-14 14:53:04,599 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-14 14:53:04,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2022-07-14 14:53:04,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-14 14:53:04,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-07-14 14:53:04,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2022-07-14 14:53:04,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:04,600 INFO L369 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2022-07-14 14:53:04,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2022-07-14 14:53:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2022-07-14 14:53:04,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 55 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2022-07-14 14:53:04,613 INFO L392 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-14 14:53:04,613 INFO L374 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-14 14:53:04,613 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 14:53:04,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2022-07-14 14:53:04,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-14 14:53:04,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:04,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:04,614 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:53:04,615 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:04,615 INFO L752 eck$LassoCheckResult]: Stem: 386#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 387#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 395#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 423#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 421#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 419#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 415#L18-1 [2022-07-14 14:53:04,615 INFO L754 eck$LassoCheckResult]: Loop: 415#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 412#L12 assume !(10 == main_~i~0#1); 404#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 405#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 415#L18-1 [2022-07-14 14:53:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:04,615 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-07-14 14:53:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:04,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799789787] [2022-07-14 14:53:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:04,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:04,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:04,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799789787] [2022-07-14 14:53:04,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799789787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:53:04,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:53:04,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:53:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29758971] [2022-07-14 14:53:04,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:53:04,629 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 14:53:04,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:04,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2022-07-14 14:53:04,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:04,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417490337] [2022-07-14 14:53:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:04,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:04,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:04,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:04,653 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:04,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:04,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:04,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:04,653 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:04,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:04,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:04,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-14 14:53:04,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:04,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:04,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:04,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:04,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,700 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-14 14:53:04,728 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:04,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:04,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-14 14:53:04,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,788 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-14 14:53:04,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:04,820 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:04,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,845 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-14 14:53:04,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:04,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:04,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,893 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:04,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-14 14:53:04,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-14 14:53:04,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:04,919 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:04,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-14 14:53:04,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:04,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:04,945 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:04,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:04,967 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:04,967 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:04,967 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:04,967 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:04,967 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:04,967 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:04,967 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:04,967 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:04,967 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-14 14:53:04,967 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:04,967 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:04,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:04,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,015 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:05,015 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:05,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,016 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-14 14:53:05,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:05,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:05,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:05,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:05,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:05,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-14 14:53:05,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,095 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-14 14:53:05,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:05,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:05,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:05,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:05,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,132 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-14 14:53:05,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:05,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:05,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:05,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-14 14:53:05,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,179 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-14 14:53:05,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:05,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:05,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:05,191 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:05,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:05,192 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:05,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,194 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,197 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:05,197 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:05,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-14 14:53:05,197 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:05,197 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-14 14:53:05,212 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 [2022-07-14 14:53:05,213 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,264 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:05,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44. 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 116 states and 190 transitions. Complement of second has 7 states. [2022-07-14 14:53:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-14 14:53:05,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-14 14:53:05,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-14 14:53:05,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2022-07-14 14:53:05,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 190 transitions. [2022-07-14 14:53:05,288 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-14 14:53:05,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 107 states and 175 transitions. [2022-07-14 14:53:05,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-14 14:53:05,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-07-14 14:53:05,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 175 transitions. [2022-07-14 14:53:05,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:05,290 INFO L369 hiAutomatonCegarLoop]: Abstraction has 107 states and 175 transitions. [2022-07-14 14:53:05,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 175 transitions. [2022-07-14 14:53:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2022-07-14 14:53:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.6770833333333333) internal successors, (161), 95 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 161 transitions. [2022-07-14 14:53:05,295 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 161 transitions. [2022-07-14 14:53:05,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:05,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:53:05,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:53:05,296 INFO L87 Difference]: Start difference. First operand 96 states and 161 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:05,305 INFO L93 Difference]: Finished difference Result 107 states and 163 transitions. [2022-07-14 14:53:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:53:05,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 163 transitions. [2022-07-14 14:53:05,308 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-07-14 14:53:05,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 101 states and 153 transitions. [2022-07-14 14:53:05,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2022-07-14 14:53:05,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-07-14 14:53:05,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 153 transitions. [2022-07-14 14:53:05,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:05,309 INFO L369 hiAutomatonCegarLoop]: Abstraction has 101 states and 153 transitions. [2022-07-14 14:53:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 153 transitions. [2022-07-14 14:53:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2022-07-14 14:53:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 95 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2022-07-14 14:53:05,314 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-14 14:53:05,314 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-14 14:53:05,314 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-14 14:53:05,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 148 transitions. [2022-07-14 14:53:05,316 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-14 14:53:05,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:05,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:05,316 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2022-07-14 14:53:05,316 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:05,316 INFO L752 eck$LassoCheckResult]: Stem: 818#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 819#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 813#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 815#L12 assume !(10 == main_~i~0#1); 822#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 877#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 873#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 867#L12 assume !(10 == main_~i~0#1); 861#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 859#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 831#L18-1 [2022-07-14 14:53:05,317 INFO L754 eck$LassoCheckResult]: Loop: 831#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 853#L12 assume !(10 == main_~i~0#1); 832#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 830#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 831#L18-1 [2022-07-14 14:53:05,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1506873443, now seen corresponding path program 1 times [2022-07-14 14:53:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:05,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406197101] [2022-07-14 14:53:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:05,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:05,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406197101] [2022-07-14 14:53:05,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406197101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:53:05,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:53:05,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:53:05,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796009074] [2022-07-14 14:53:05,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:53:05,330 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 14:53:05,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 3 times [2022-07-14 14:53:05,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:05,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414533338] [2022-07-14 14:53:05,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:05,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:05,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:05,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:05,353 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:05,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:05,353 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:05,353 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:05,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:05,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:05,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:05,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-14 14:53:05,354 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:05,354 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:05,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,418 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:05,418 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:05,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,424 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-14 14:53:05,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:05,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:05,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-14 14:53:05,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,469 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-14 14:53:05,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:05,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:05,490 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:05,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-07-14 14:53:05,540 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:05,540 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:05,540 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:05,541 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:05,541 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:05,541 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,541 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:05,541 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:05,541 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-14 14:53:05,541 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:05,541 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:05,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:05,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:05,591 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:05,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,592 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) [2022-07-14 14:53:05,592 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 [2022-07-14 14:53:05,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:05,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:05,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:05,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-07-14 14:53:05,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,638 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) [2022-07-14 14:53:05,638 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 [2022-07-14 14:53:05,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:05,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:05,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:05,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:05,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:05,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:05,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:05,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:05,661 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:05,664 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:05,664 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:05,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:05,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,665 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-14 14:53:05,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:05,667 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:05,667 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:05,667 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-14 14:53:05,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-07-14 14:53:05,683 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:05,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,741 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:05,741 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 147 states and 221 transitions. Complement of second has 7 states. [2022-07-14 14:53:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-14 14:53:05,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-14 14:53:05,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,769 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,811 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:05,811 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,827 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 147 states and 221 transitions. Complement of second has 7 states. [2022-07-14 14:53:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-14 14:53:05,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-14 14:53:05,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,829 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:05,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,881 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:05,881 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 161 states and 250 transitions. Complement of second has 6 states. [2022-07-14 14:53:05,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-07-14 14:53:05,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-14 14:53:05,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-14 14:53:05,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2022-07-14 14:53:05,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:05,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 250 transitions. [2022-07-14 14:53:05,917 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2022-07-14 14:53:05,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 119 states and 180 transitions. [2022-07-14 14:53:05,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-14 14:53:05,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-07-14 14:53:05,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 180 transitions. [2022-07-14 14:53:05,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:05,919 INFO L369 hiAutomatonCegarLoop]: Abstraction has 119 states and 180 transitions. [2022-07-14 14:53:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 180 transitions. [2022-07-14 14:53:05,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-07-14 14:53:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2022-07-14 14:53:05,924 INFO L392 hiAutomatonCegarLoop]: Abstraction has 77 states and 117 transitions. [2022-07-14 14:53:05,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:05,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:53:05,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:53:05,924 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. 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) [2022-07-14 14:53:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:05,932 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2022-07-14 14:53:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:53:05,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 79 transitions. [2022-07-14 14:53:05,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-14 14:53:05,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 51 states and 68 transitions. [2022-07-14 14:53:05,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-07-14 14:53:05,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-14 14:53:05,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 68 transitions. [2022-07-14 14:53:05,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:05,935 INFO L369 hiAutomatonCegarLoop]: Abstraction has 51 states and 68 transitions. [2022-07-14 14:53:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 68 transitions. [2022-07-14 14:53:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-07-14 14:53:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 47 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2022-07-14 14:53:05,937 INFO L392 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-14 14:53:05,938 INFO L374 stractBuchiCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-14 14:53:05,938 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-14 14:53:05,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 65 transitions. [2022-07-14 14:53:05,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-14 14:53:05,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:05,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:05,939 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:53:05,939 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:05,939 INFO L752 eck$LassoCheckResult]: Stem: 1665#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1666#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1674#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1694#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1684#L12-2 assume !(0 == main_~i~0#1); 1672#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1673#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1692#L12 assume !(10 == main_~i~0#1); 1691#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1661#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1687#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1685#L12 [2022-07-14 14:53:05,939 INFO L754 eck$LassoCheckResult]: Loop: 1685#L12 assume !(10 == main_~i~0#1); 1683#L12-2 assume !(0 == main_~i~0#1); 1680#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1681#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1685#L12 [2022-07-14 14:53:05,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2022-07-14 14:53:05,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:05,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393263981] [2022-07-14 14:53:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:05,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:05,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:05,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393263981] [2022-07-14 14:53:05,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393263981] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:53:05,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461964438] [2022-07-14 14:53:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:05,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:53:05,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:05,959 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:53:05,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-07-14 14:53:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:05,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:53:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:06,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:53:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:06,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461964438] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:53:06,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:53:06,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-14 14:53:06,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546611751] [2022-07-14 14:53:06,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:53:06,024 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 14:53:06,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2022-07-14 14:53:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:06,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305104741] [2022-07-14 14:53:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:06,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:06,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:06,075 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:06,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:06,081 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:06,081 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:06,081 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:06,081 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,081 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:06,081 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:06,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-14 14:53:06,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:06,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:06,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:06,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:06,196 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:06,196 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:06,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,197 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-14 14:53:06,200 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:06,200 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:06,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:06,211 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: [] [2022-07-14 14:53:06,233 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 [2022-07-14 14:53:06,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,234 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:06,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:06,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-14 14:53:06,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:06,267 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: [] [2022-07-14 14:53:06,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:06,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,296 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-14 14:53:06,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:06,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:06,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:06,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,330 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-14 14:53:06,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:06,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:06,400 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:06,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-14 14:53:06,403 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:06,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:06,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:06,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:06,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:06,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:06,404 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:06,404 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-14 14:53:06,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:06,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:06,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:06,472 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:06,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,473 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-14 14:53:06,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:06,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:06,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:06,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:06,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:06,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:06,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:06,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:06,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-07-14 14:53:06,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,529 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:06,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:06,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:06,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:06,540 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-14 14:53:06,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:06,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-14 14:53:06,542 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-14 14:53:06,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:06,544 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:06,546 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:06,546 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:06,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,547 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-14 14:53:06,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:06,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:06,549 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:06,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-14 14:53:06,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-07-14 14:53:06,564 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:06,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:06,609 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:06,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,629 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 66 states and 90 transitions. Complement of second has 7 states. [2022-07-14 14:53:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-14 14:53:06,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-14 14:53:06,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:06,631 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:06,676 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:06,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 66 states and 90 transitions. Complement of second has 7 states. [2022-07-14 14:53:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-14 14:53:06,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-14 14:53:06,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:06,698 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:06,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:06,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:06,744 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:06,745 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 124 transitions. Complement of second has 6 states. [2022-07-14 14:53:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-14 14:53:06,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-14 14:53:06,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:06,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2022-07-14 14:53:06,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:06,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2022-07-14 14:53:06,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:06,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 124 transitions. [2022-07-14 14:53:06,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-14 14:53:06,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 56 states and 76 transitions. [2022-07-14 14:53:06,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-14 14:53:06,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-14 14:53:06,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 76 transitions. [2022-07-14 14:53:06,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:06,771 INFO L369 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-07-14 14:53:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 76 transitions. [2022-07-14 14:53:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2022-07-14 14:53:06,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 41 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2022-07-14 14:53:06,773 INFO L392 hiAutomatonCegarLoop]: Abstraction has 42 states and 57 transitions. [2022-07-14 14:53:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:06,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:53:06,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:53:06,774 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:06,796 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2022-07-14 14:53:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:53:06,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2022-07-14 14:53:06,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-07-14 14:53:06,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 72 states and 93 transitions. [2022-07-14 14:53:06,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-14 14:53:06,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-07-14 14:53:06,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 93 transitions. [2022-07-14 14:53:06,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:06,799 INFO L369 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2022-07-14 14:53:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 93 transitions. [2022-07-14 14:53:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2022-07-14 14:53:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-07-14 14:53:06,802 INFO L392 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-14 14:53:06,802 INFO L374 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-14 14:53:06,802 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-14 14:53:06,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2022-07-14 14:53:06,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-14 14:53:06,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:06,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:06,803 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:53:06,803 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:06,803 INFO L752 eck$LassoCheckResult]: Stem: 2294#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2303#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2308#L12 assume !(10 == main_~i~0#1); 2290#L12-2 assume !(0 == main_~i~0#1); 2291#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2322#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2304#L12 assume !(10 == main_~i~0#1); 2292#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2293#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2332#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2320#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2319#L12-2 [2022-07-14 14:53:06,803 INFO L754 eck$LassoCheckResult]: Loop: 2319#L12-2 assume !(0 == main_~i~0#1); 2355#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2354#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2318#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2319#L12-2 [2022-07-14 14:53:06,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2022-07-14 14:53:06,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:06,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287081662] [2022-07-14 14:53:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:06,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:53:06,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:06,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287081662] [2022-07-14 14:53:06,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287081662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:53:06,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:53:06,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:53:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873304876] [2022-07-14 14:53:06,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:53:06,830 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 14:53:06,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-07-14 14:53:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:06,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226291828] [2022-07-14 14:53:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:06,838 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:06,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:06,863 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:06,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:06,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:06,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:06,864 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:06,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:06,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:06,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-14 14:53:06,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:06,864 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:06,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:06,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:06,924 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:06,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,925 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:06,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:06,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:06,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-14 14:53:06,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:06,956 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:06,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:06,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:06,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:06,979 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) [2022-07-14 14:53:06,983 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 [2022-07-14 14:53:06,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:06,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:07,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:07,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,040 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-14 14:53:07,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:07,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,064 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:07,064 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:07,086 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 [2022-07-14 14:53:07,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,088 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:07,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-14 14:53:07,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,155 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-14 14:53:07,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:07,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,244 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:07,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-14 14:53:07,247 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:07,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:07,248 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:07,248 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:07,248 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:07,248 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,248 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:07,248 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:07,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-14 14:53:07,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:07,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:07,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,309 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:07,309 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:07,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,311 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-14 14:53:07,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:07,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:07,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:07,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:07,320 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-14 14:53:07,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:07,321 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-14 14:53:07,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:07,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:07,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,338 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-14 14:53:07,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:07,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:07,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:07,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:07,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:07,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:07,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:07,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:07,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,365 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-14 14:53:07,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:07,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:07,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:07,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:07,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:07,375 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:07,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:07,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:07,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-07-14 14:53:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,416 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) [2022-07-14 14:53:07,416 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 [2022-07-14 14:53:07,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:07,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:07,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:07,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:07,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:07,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:07,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:07,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:07,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:07,432 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-14 14:53:07,432 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:07,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,433 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-14 14:53:07,435 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:07,435 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:07,435 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:07,435 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-14 14:53:07,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,450 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:07,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:07,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:07,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:07,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:07,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:07,491 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:07,492 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-07-14 14:53:07,512 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 160 states and 209 transitions. Complement of second has 7 states. [2022-07-14 14:53:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:07,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-07-14 14:53:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-14 14:53:07,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-14 14:53:07,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:07,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-07-14 14:53:07,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:07,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-07-14 14:53:07,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:07,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2022-07-14 14:53:07,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-14 14:53:07,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 161 transitions. [2022-07-14 14:53:07,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-14 14:53:07,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-14 14:53:07,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2022-07-14 14:53:07,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:07,516 INFO L369 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2022-07-14 14:53:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2022-07-14 14:53:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2022-07-14 14:53:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 119 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:07,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2022-07-14 14:53:07,520 INFO L392 hiAutomatonCegarLoop]: Abstraction has 120 states and 155 transitions. [2022-07-14 14:53:07,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:07,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:53:07,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:53:07,521 INFO L87 Difference]: Start difference. First operand 120 states and 155 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:07,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:07,533 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2022-07-14 14:53:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:53:07,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 174 transitions. [2022-07-14 14:53:07,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2022-07-14 14:53:07,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 174 transitions. [2022-07-14 14:53:07,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-14 14:53:07,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-14 14:53:07,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 174 transitions. [2022-07-14 14:53:07,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:07,535 INFO L369 hiAutomatonCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-07-14 14:53:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 174 transitions. [2022-07-14 14:53:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2022-07-14 14:53:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 117 states have (on average 1.2564102564102564) internal successors, (147), 116 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-07-14 14:53:07,538 INFO L392 hiAutomatonCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-14 14:53:07,538 INFO L374 stractBuchiCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-14 14:53:07,539 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-14 14:53:07,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 147 transitions. [2022-07-14 14:53:07,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-14 14:53:07,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:07,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:07,540 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-07-14 14:53:07,540 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-14 14:53:07,540 INFO L752 eck$LassoCheckResult]: Stem: 2854#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2859#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2867#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2846#L12-2 assume !(0 == main_~i~0#1); 2847#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2961#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2862#L12 assume !(10 == main_~i~0#1); 2848#L12-2 assume !(0 == main_~i~0#1); 2849#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2858#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2960#L12 assume !(10 == main_~i~0#1); 2959#L12-2 assume !(0 == main_~i~0#1); 2958#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2956#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2955#L12 assume !(10 == main_~i~0#1); 2954#L12-2 assume !(0 == main_~i~0#1); 2952#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2953#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2957#L12 assume !(10 == main_~i~0#1); 2861#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2921#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2919#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2918#L12 assume !(10 == main_~i~0#1); 2896#L12-2 assume !(0 == main_~i~0#1); 2898#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2897#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2895#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2869#L12-2 [2022-07-14 14:53:07,540 INFO L754 eck$LassoCheckResult]: Loop: 2869#L12-2 assume !(0 == main_~i~0#1); 2864#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2865#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2893#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2869#L12-2 [2022-07-14 14:53:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2022-07-14 14:53:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:07,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375564433] [2022-07-14 14:53:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:07,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:53:07,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:07,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375564433] [2022-07-14 14:53:07,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375564433] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:53:07,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872898004] [2022-07-14 14:53:07,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:53:07,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:53:07,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,584 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) [2022-07-14 14:53:07,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-07-14 14:53:07,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-14 14:53:07,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:53:07,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:07,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-14 14:53:07,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:53:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-14 14:53:07,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872898004] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:53:07,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:53:07,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-07-14 14:53:07,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438121911] [2022-07-14 14:53:07,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:53:07,692 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-14 14:53:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-07-14 14:53:07,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:07,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017036438] [2022-07-14 14:53:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:07,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:07,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:07,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:07,711 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 [2022-07-14 14:53:07,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,734 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:07,734 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:07,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:07,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:07,734 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:07,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:07,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:07,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-14 14:53:07,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:07,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:07,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:07,788 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:07,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,790 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:07,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-07-14 14:53:07,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:07,807 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: [] [2022-07-14 14:53:07,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,822 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-07-14 14:53:07,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:07,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:07,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:07,859 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:07,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-07-14 14:53:07,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:07,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:07,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:07,936 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 [2022-07-14 14:53:07,936 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:07,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:07,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:07,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:07,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:07,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:07,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:07,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:07,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-14 14:53:07,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:07,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:07,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:07,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:08,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:08,006 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:08,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:08,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:08,008 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:08,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-07-14 14:53:08,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:08,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:08,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:08,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:08,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:08,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:08,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:08,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:08,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:08,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:08,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:08,049 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:08,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-07-14 14:53:08,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:08,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:08,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:08,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:08,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:08,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:08,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:08,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:08,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:08,060 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:53:08,060 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 14:53:08,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:08,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:08,061 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:08,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-07-14 14:53:08,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:08,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:08,064 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:08,064 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-14 14:53:08,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-07-14 14:53:08,080 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:08,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:08,145 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:08,145 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,165 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 164 states and 204 transitions. Complement of second has 7 states. [2022-07-14 14:53:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-14 14:53:08,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-14 14:53:08,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:08,166 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:08,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:08,228 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:08,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,251 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 198 states and 239 transitions. Complement of second has 7 states. [2022-07-14 14:53:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-07-14 14:53:08,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-14 14:53:08,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:08,252 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:53:08,322 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:53:08,322 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,343 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 176 states and 219 transitions. Complement of second has 8 states. [2022-07-14 14:53:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-14 14:53:08,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-14 14:53:08,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:08,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-07-14 14:53:08,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:08,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-07-14 14:53:08,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:08,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 219 transitions. [2022-07-14 14:53:08,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2022-07-14 14:53:08,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 121 states and 151 transitions. [2022-07-14 14:53:08,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-14 14:53:08,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-14 14:53:08,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 151 transitions. [2022-07-14 14:53:08,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:08,347 INFO L369 hiAutomatonCegarLoop]: Abstraction has 121 states and 151 transitions. [2022-07-14 14:53:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 151 transitions. [2022-07-14 14:53:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2022-07-14 14:53:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.25) internal successors, (95), 75 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2022-07-14 14:53:08,349 INFO L392 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2022-07-14 14:53:08,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:53:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:53:08,350 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:08,415 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2022-07-14 14:53:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 14:53:08,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2022-07-14 14:53:08,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2022-07-14 14:53:08,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 153 states and 188 transitions. [2022-07-14 14:53:08,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-14 14:53:08,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-14 14:53:08,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 188 transitions. [2022-07-14 14:53:08,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:08,418 INFO L369 hiAutomatonCegarLoop]: Abstraction has 153 states and 188 transitions. [2022-07-14 14:53:08,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 188 transitions. [2022-07-14 14:53:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 104. [2022-07-14 14:53:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 103 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-07-14 14:53:08,421 INFO L392 hiAutomatonCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-14 14:53:08,421 INFO L374 stractBuchiCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-14 14:53:08,421 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-14 14:53:08,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 126 transitions. [2022-07-14 14:53:08,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-07-14 14:53:08,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:08,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:08,422 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-14 14:53:08,423 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2022-07-14 14:53:08,423 INFO L752 eck$LassoCheckResult]: Stem: 4245#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 assume !(10 == main_~i~0#1); 4265#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4263#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4255#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 [2022-07-14 14:53:08,423 INFO L754 eck$LassoCheckResult]: Loop: 4256#L12 assume !(10 == main_~i~0#1); 4284#L12-2 assume !(0 == main_~i~0#1); 4283#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4282#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4281#L12 assume !(10 == main_~i~0#1); 4280#L12-2 assume !(0 == main_~i~0#1); 4279#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4278#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4277#L12 assume !(10 == main_~i~0#1); 4276#L12-2 assume !(0 == main_~i~0#1); 4275#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4274#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4273#L12 assume !(10 == main_~i~0#1); 4272#L12-2 assume !(0 == main_~i~0#1); 4271#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4270#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4269#L12 assume !(10 == main_~i~0#1); 4259#L12-2 assume !(0 == main_~i~0#1); 4262#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4261#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4258#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4260#L12-2 assume !(0 == main_~i~0#1); 4324#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4323#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4322#L12 assume !(10 == main_~i~0#1); 4321#L12-2 assume !(0 == main_~i~0#1); 4320#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4319#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4318#L12 assume !(10 == main_~i~0#1); 4317#L12-2 assume !(0 == main_~i~0#1); 4316#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4315#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4314#L12 assume !(10 == main_~i~0#1); 4313#L12-2 assume !(0 == main_~i~0#1); 4312#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4311#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4309#L12 assume !(10 == main_~i~0#1); 4308#L12-2 assume !(0 == main_~i~0#1); 4306#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4307#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 assume !(10 == main_~i~0#1); 4265#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4263#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4255#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 [2022-07-14 14:53:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 2 times [2022-07-14 14:53:08,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:08,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068379659] [2022-07-14 14:53:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:08,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1466490324, now seen corresponding path program 1 times [2022-07-14 14:53:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:08,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963992482] [2022-07-14 14:53:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:53:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:08,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963992482] [2022-07-14 14:53:08,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963992482] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:53:08,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732464958] [2022-07-14 14:53:08,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:53:08,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:08,483 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:53:08,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-07-14 14:53:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,552 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:53:08,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:53:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-14 14:53:08,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732464958] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:53:08,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:53:08,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-14 14:53:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130307971] [2022-07-14 14:53:08,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:53:08,629 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 14:53:08,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:08,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 14:53:08,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:53:08,630 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. cyclomatic complexity: 26 Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:08,694 INFO L93 Difference]: Finished difference Result 198 states and 243 transitions. [2022-07-14 14:53:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:53:08,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 243 transitions. [2022-07-14 14:53:08,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2022-07-14 14:53:08,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 173 states and 213 transitions. [2022-07-14 14:53:08,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-14 14:53:08,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-14 14:53:08,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 213 transitions. [2022-07-14 14:53:08,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:08,698 INFO L369 hiAutomatonCegarLoop]: Abstraction has 173 states and 213 transitions. [2022-07-14 14:53:08,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 213 transitions. [2022-07-14 14:53:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2022-07-14 14:53:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 164 states have (on average 1.225609756097561) internal successors, (201), 163 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2022-07-14 14:53:08,701 INFO L392 hiAutomatonCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-14 14:53:08,701 INFO L374 stractBuchiCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-14 14:53:08,701 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-14 14:53:08,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 201 transitions. [2022-07-14 14:53:08,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2022-07-14 14:53:08,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:08,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:08,703 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-14 14:53:08,703 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2022-07-14 14:53:08,703 INFO L752 eck$LassoCheckResult]: Stem: 4815#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4816#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4817#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4819#L12 assume !(10 == main_~i~0#1); 4859#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4858#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4829#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4830#L12 [2022-07-14 14:53:08,703 INFO L754 eck$LassoCheckResult]: Loop: 4830#L12 assume !(10 == main_~i~0#1); 4851#L12-2 assume !(0 == main_~i~0#1); 4850#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4849#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4848#L12 assume !(10 == main_~i~0#1); 4847#L12-2 assume !(0 == main_~i~0#1); 4846#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4845#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4844#L12 assume !(10 == main_~i~0#1); 4843#L12-2 assume !(0 == main_~i~0#1); 4842#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4841#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4840#L12 assume !(10 == main_~i~0#1); 4839#L12-2 assume !(0 == main_~i~0#1); 4838#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4837#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4836#L12 assume !(10 == main_~i~0#1); 4833#L12-2 assume !(0 == main_~i~0#1); 4835#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4834#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4832#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4812#L12-2 assume !(0 == main_~i~0#1); 4813#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4820#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4821#L12 assume !(10 == main_~i~0#1); 4826#L12-2 assume !(0 == main_~i~0#1); 4975#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4974#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4973#L12 assume !(10 == main_~i~0#1); 4972#L12-2 assume !(0 == main_~i~0#1); 4971#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4970#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4969#L12 assume !(10 == main_~i~0#1); 4968#L12-2 assume !(0 == main_~i~0#1); 4967#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4966#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4965#L12 assume !(10 == main_~i~0#1); 4964#L12-2 assume !(0 == main_~i~0#1); 4963#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4962#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4961#L12 assume !(10 == main_~i~0#1); 4960#L12-2 assume !(0 == main_~i~0#1); 4959#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4958#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4957#L12 assume !(10 == main_~i~0#1); 4956#L12-2 assume !(0 == main_~i~0#1); 4955#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4954#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4953#L12 assume !(10 == main_~i~0#1); 4952#L12-2 assume !(0 == main_~i~0#1); 4951#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4950#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4949#L12 assume !(10 == main_~i~0#1); 4948#L12-2 assume !(0 == main_~i~0#1); 4947#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4946#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4866#L12 assume !(10 == main_~i~0#1); 4945#L12-2 assume !(0 == main_~i~0#1); 4910#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4865#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4819#L12 assume !(10 == main_~i~0#1); 4859#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4858#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4829#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4830#L12 [2022-07-14 14:53:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 3 times [2022-07-14 14:53:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:08,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038648269] [2022-07-14 14:53:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,707 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:08,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,710 INFO L85 PathProgramCache]: Analyzing trace with hash 726843037, now seen corresponding path program 2 times [2022-07-14 14:53:08,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:08,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167146321] [2022-07-14 14:53:08,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,723 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:08,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:08,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1110135673, now seen corresponding path program 4 times [2022-07-14 14:53:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:08,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567373492] [2022-07-14 14:53:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:08,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 14:53:08,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:08,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567373492] [2022-07-14 14:53:08,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567373492] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:53:08,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281967857] [2022-07-14 14:53:08,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 14:53:08,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:53:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:08,839 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:53:08,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2022-07-14 14:53:08,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 14:53:08,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:53:08,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:53:08,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 14:53:08,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:53:08,971 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 14:53:08,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281967857] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:53:08,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:53:08,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-14 14:53:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440914189] [2022-07-14 14:53:08,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:53:09,275 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:09,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:09,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:09,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:09,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:53:09,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:09,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:09,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-14 14:53:09,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:09,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:09,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:09,322 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:53:09,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,328 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-07-14 14:53:09,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:09,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:09,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:09,335 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:53:09,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:09,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,351 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-07-14 14:53:09,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:09,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:09,362 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:53:09,363 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: [] [2022-07-14 14:53:09,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2022-07-14 14:53:09,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,378 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-07-14 14:53:09,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:53:09,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:09,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:09,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,412 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-07-14 14:53:09,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:53:09,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:53:09,421 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:53:09,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-07-14 14:53:09,435 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:53:09,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:53:09,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:53:09,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:53:09,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:53:09,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:53:09,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:53:09,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-14 14:53:09,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:53:09,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:53:09,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:53:09,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:53:09,486 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:53:09,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,487 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-07-14 14:53:09,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:09,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:09,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:09,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:09,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:09,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:09,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:09,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:09,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:09,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2022-07-14 14:53:09,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,523 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-07-14 14:53:09,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:09,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:09,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:09,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:09,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:09,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:53:09,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:53:09,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:53:09,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:09,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,561 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-07-14 14:53:09,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 14:53:09,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:53:09,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:53:09,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:53:09,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:53:09,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:53:09,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:53:09,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:53:09,595 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:53:09,598 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-14 14:53:09,599 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:53:09,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:53:09,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:53:09,600 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:53:09,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-07-14 14:53:09,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:53:09,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:53:09,602 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:53:09,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-14 14:53:09,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-07-14 14:53:09,617 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:53:09,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:09,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:09,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:53:09,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:53:09,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-14 14:53:09,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:09,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:09,898 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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 489 states and 580 transitions. Complement of second has 17 states. [2022-07-14 14:53:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:09,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2022-07-14 14:53:09,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-14 14:53:09,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:09,900 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:09,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:09,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:53:09,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:53:10,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-14 14:53:10,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:10,290 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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 784 states and 937 transitions. Complement of second has 31 states. [2022-07-14 14:53:10,290 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 [2022-07-14 14:53:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2022-07-14 14:53:10,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 67 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-14 14:53:10,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:10,291 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:10,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:10,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:10,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:53:10,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:53:10,455 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 9 loop predicates [2022-07-14 14:53:10,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:10,652 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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 1329 states and 1557 transitions. Complement of second has 174 states. [2022-07-14 14:53:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2022-07-14 14:53:10,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 76 transitions. [2022-07-14 14:53:10,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 76 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-14 14:53:10,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:10,656 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:53:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:10,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:53:10,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:10,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:53:10,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:53:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:53:10,811 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-14 14:53:10,811 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,026 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 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 1639 states and 1887 transitions. Complement of second has 195 states. [2022-07-14 14:53:11,026 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 [2022-07-14 14:53:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 78 transitions. [2022-07-14 14:53:11,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-14 14:53:11,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 71 letters. Loop has 64 letters. [2022-07-14 14:53:11,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:11,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 128 letters. [2022-07-14 14:53:11,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:53:11,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1639 states and 1887 transitions. [2022-07-14 14:53:11,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 307 [2022-07-14 14:53:11,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1639 states to 522 states and 614 transitions. [2022-07-14 14:53:11,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-14 14:53:11,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2022-07-14 14:53:11,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 614 transitions. [2022-07-14 14:53:11,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:11,043 INFO L369 hiAutomatonCegarLoop]: Abstraction has 522 states and 614 transitions. [2022-07-14 14:53:11,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 614 transitions. [2022-07-14 14:53:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 163. [2022-07-14 14:53:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 162 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2022-07-14 14:53:11,047 INFO L392 hiAutomatonCegarLoop]: Abstraction has 163 states and 197 transitions. [2022-07-14 14:53:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 14:53:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:53:11,048 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:11,095 INFO L93 Difference]: Finished difference Result 398 states and 454 transitions. [2022-07-14 14:53:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:53:11,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 454 transitions. [2022-07-14 14:53:11,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 195 [2022-07-14 14:53:11,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 298 states and 353 transitions. [2022-07-14 14:53:11,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2022-07-14 14:53:11,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2022-07-14 14:53:11,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 353 transitions. [2022-07-14 14:53:11,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:11,103 INFO L369 hiAutomatonCegarLoop]: Abstraction has 298 states and 353 transitions. [2022-07-14 14:53:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 353 transitions. [2022-07-14 14:53:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 152. [2022-07-14 14:53:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 151 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2022-07-14 14:53:11,106 INFO L392 hiAutomatonCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-14 14:53:11,106 INFO L374 stractBuchiCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-14 14:53:11,106 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-14 14:53:11,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 183 transitions. [2022-07-14 14:53:11,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 88 [2022-07-14 14:53:11,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:11,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:11,111 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-14 14:53:11,111 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [21, 20, 19, 11, 10, 2, 1] [2022-07-14 14:53:11,111 INFO L752 eck$LassoCheckResult]: Stem: 11594#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 11595#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11599#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11609#L12 assume !(10 == main_~i~0#1); 11612#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11610#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11603#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11604#L12 [2022-07-14 14:53:11,113 INFO L754 eck$LassoCheckResult]: Loop: 11604#L12 assume !(10 == main_~i~0#1); 11692#L12-2 assume !(0 == main_~i~0#1); 11691#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11690#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11689#L12 assume !(10 == main_~i~0#1); 11688#L12-2 assume !(0 == main_~i~0#1); 11687#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11686#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11685#L12 assume !(10 == main_~i~0#1); 11684#L12-2 assume !(0 == main_~i~0#1); 11683#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11682#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11681#L12 assume !(10 == main_~i~0#1); 11678#L12-2 assume !(0 == main_~i~0#1); 11680#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11679#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11677#L12 assume !(10 == main_~i~0#1); 11586#L12-2 assume !(0 == main_~i~0#1); 11587#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11590#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11591#L12 assume !(10 == main_~i~0#1); 11676#L12-2 assume !(0 == main_~i~0#1); 11675#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11674#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11673#L12 assume !(10 == main_~i~0#1); 11672#L12-2 assume !(0 == main_~i~0#1); 11671#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11670#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11669#L12 assume !(10 == main_~i~0#1); 11668#L12-2 assume !(0 == main_~i~0#1); 11667#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11666#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11665#L12 assume !(10 == main_~i~0#1); 11664#L12-2 assume !(0 == main_~i~0#1); 11663#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11662#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11661#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11660#L12-2 assume !(0 == main_~i~0#1); 11659#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11658#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11657#L12 assume !(10 == main_~i~0#1); 11656#L12-2 assume !(0 == main_~i~0#1); 11655#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11654#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11653#L12 assume !(10 == main_~i~0#1); 11652#L12-2 assume !(0 == main_~i~0#1); 11651#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11650#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11649#L12 assume !(10 == main_~i~0#1); 11648#L12-2 assume !(0 == main_~i~0#1); 11647#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11646#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11645#L12 assume !(10 == main_~i~0#1); 11644#L12-2 assume !(0 == main_~i~0#1); 11643#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11642#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11641#L12 assume !(10 == main_~i~0#1); 11640#L12-2 assume !(0 == main_~i~0#1); 11639#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11638#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11637#L12 assume !(10 == main_~i~0#1); 11636#L12-2 assume !(0 == main_~i~0#1); 11635#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11634#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11633#L12 assume !(10 == main_~i~0#1); 11632#L12-2 assume !(0 == main_~i~0#1); 11631#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11630#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11629#L12 assume !(10 == main_~i~0#1); 11628#L12-2 assume !(0 == main_~i~0#1); 11627#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11626#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11622#L12 assume !(10 == main_~i~0#1); 11624#L12-2 assume !(0 == main_~i~0#1); 11623#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11621#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11620#L12 assume !(10 == main_~i~0#1); 11618#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11619#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11694#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11605#L12 assume !(10 == main_~i~0#1); 11615#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11610#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11603#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11604#L12 [2022-07-14 14:53:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 4 times [2022-07-14 14:53:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:11,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573760087] [2022-07-14 14:53:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,120 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:11,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:11,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1840948782, now seen corresponding path program 3 times [2022-07-14 14:53:11,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:11,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056891092] [2022-07-14 14:53:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:11,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:53:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-14 14:53:11,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:53:11,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056891092] [2022-07-14 14:53:11,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056891092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:53:11,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:53:11,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:53:11,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223410810] [2022-07-14 14:53:11,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:53:11,194 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 14:53:11,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:53:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:53:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:53:11,195 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:53:11,209 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2022-07-14 14:53:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:53:11,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 181 transitions. [2022-07-14 14:53:11,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-14 14:53:11,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 144 states and 170 transitions. [2022-07-14 14:53:11,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-14 14:53:11,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-07-14 14:53:11,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 170 transitions. [2022-07-14 14:53:11,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:53:11,212 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 170 transitions. [2022-07-14 14:53:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 170 transitions. [2022-07-14 14:53:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2022-07-14 14:53:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 100 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:53:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2022-07-14 14:53:11,214 INFO L392 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-14 14:53:11,214 INFO L374 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-14 14:53:11,215 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-14 14:53:11,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2022-07-14 14:53:11,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-14 14:53:11,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:53:11,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:53:11,216 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 1, 1, 1] [2022-07-14 14:53:11,216 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-07-14 14:53:11,216 INFO L752 eck$LassoCheckResult]: Stem: 11904#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 11905#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11917#L12 assume !(10 == main_~i~0#1); 11918#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11919#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11900#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11901#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11937#L12 assume !(10 == main_~i~0#1); 11920#L12-2 [2022-07-14 14:53:11,216 INFO L754 eck$LassoCheckResult]: Loop: 11920#L12-2 assume !(0 == main_~i~0#1); 11913#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11914#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11939#L12 assume !(10 == main_~i~0#1); 11936#L12-2 assume !(0 == main_~i~0#1); 11935#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11934#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11933#L12 assume !(10 == main_~i~0#1); 11932#L12-2 assume !(0 == main_~i~0#1); 11931#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11930#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11929#L12 assume !(10 == main_~i~0#1); 11928#L12-2 assume !(0 == main_~i~0#1); 11927#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11926#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11925#L12 assume !(10 == main_~i~0#1); 11924#L12-2 assume !(0 == main_~i~0#1); 11923#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11922#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11921#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11897#L12-2 assume !(0 == main_~i~0#1); 11898#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11902#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11903#L12 assume !(10 == main_~i~0#1); 11995#L12-2 assume !(0 == main_~i~0#1); 11994#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11993#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11992#L12 assume !(10 == main_~i~0#1); 11991#L12-2 assume !(0 == main_~i~0#1); 11990#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11989#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11988#L12 assume !(10 == main_~i~0#1); 11987#L12-2 assume !(0 == main_~i~0#1); 11986#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11985#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11984#L12 assume !(10 == main_~i~0#1); 11983#L12-2 assume !(0 == main_~i~0#1); 11982#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11981#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11980#L12 assume !(10 == main_~i~0#1); 11979#L12-2 assume !(0 == main_~i~0#1); 11978#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11977#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11976#L12 assume !(10 == main_~i~0#1); 11975#L12-2 assume !(0 == main_~i~0#1); 11974#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11973#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11972#L12 assume !(10 == main_~i~0#1); 11971#L12-2 assume !(0 == main_~i~0#1); 11970#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11969#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11968#L12 assume !(10 == main_~i~0#1); 11967#L12-2 assume !(0 == main_~i~0#1); 11966#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11965#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11962#L12 assume !(10 == main_~i~0#1); 11964#L12-2 assume !(0 == main_~i~0#1); 11963#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11961#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11960#L12 assume !(10 == main_~i~0#1); 11910#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11959#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11956#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11954#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11937#L12 assume !(10 == main_~i~0#1); 11920#L12-2 [2022-07-14 14:53:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 781927031, now seen corresponding path program 1 times [2022-07-14 14:53:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:11,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384130954] [2022-07-14 14:53:11,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:11,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:11,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash 921517193, now seen corresponding path program 4 times [2022-07-14 14:53:11,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:11,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957973655] [2022-07-14 14:53:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:11,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:11,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:53:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash 933372671, now seen corresponding path program 5 times [2022-07-14 14:53:11,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:53:11,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137736273] [2022-07-14 14:53:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:53:11,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:53:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:53:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:53:11,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:53:11,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 02:53:11 BoogieIcfgContainer [2022-07-14 14:53:11,757 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 14:53:11,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:53:11,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:53:11,758 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:53:11,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:53:01" (3/4) ... [2022-07-14 14:53:11,760 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 14:53:11,794 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:53:11,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:53:11,795 INFO L158 Benchmark]: Toolchain (without parser) took 10205.50ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 93.8MB in the beginning and 76.2MB in the end (delta: 17.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,795 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:53:11,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.11ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 99.1MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.63ms. Allocated memory is still 121.6MB. Free memory was 99.1MB in the beginning and 98.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:53:11,796 INFO L158 Benchmark]: Boogie Preprocessor took 15.13ms. Allocated memory is still 121.6MB. Free memory was 98.0MB in the beginning and 96.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,796 INFO L158 Benchmark]: RCFGBuilder took 176.20ms. Allocated memory is still 121.6MB. Free memory was 96.9MB in the beginning and 88.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,797 INFO L158 Benchmark]: BuchiAutomizer took 9776.12ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,797 INFO L158 Benchmark]: Witness Printer took 36.91ms. Allocated memory is still 146.8MB. Free memory was 79.4MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:53:11,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.11ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 99.1MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.63ms. Allocated memory is still 121.6MB. Free memory was 99.1MB in the beginning and 98.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.13ms. Allocated memory is still 121.6MB. Free memory was 98.0MB in the beginning and 96.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 176.20ms. Allocated memory is still 121.6MB. Free memory was 96.9MB in the beginning and 88.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9776.12ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.6MB in the beginning and 79.4MB in the end (delta: 9.2MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Witness Printer took 36.91ms. Allocated memory is still 146.8MB. Free memory was 79.4MB in the beginning and 76.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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, 5 deterministic, 4 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 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 i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 16 locations. 9 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 101 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.7s and 12 iterations. TraceHistogramMax:21. Analysis of lassos took 6.6s. Construction of modules took 0.5s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 18. Automata minimization 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 766 StatesRemovedByMinimization, 18 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 3, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 220/480 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 441 mSDsluCounter, 235 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 204 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax174 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf91 smp95 dnf122 smp94 tf109 neg96 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=5, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c93aa61=0, up=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) Loop: [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 14:53:11,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2022-07-14 14:53:12,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2022-07-14 14:53:12,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-07-14 14:53:12,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2022-07-14 14:53:12,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)