./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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-?-6c24879 [2022-07-13 03:11:48,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:11:48,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:11:48,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:11:48,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:11:48,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:11:48,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:11:48,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:11:48,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:11:48,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:11:48,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:11:48,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:11:48,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:11:48,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:11:48,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:11:48,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:11:48,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:11:48,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:11:48,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:11:48,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:11:48,699 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:11:48,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:11:48,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:11:48,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:11:48,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:11:48,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:11:48,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:11:48,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:11:48,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:11:48,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:11:48,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:11:48,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:11:48,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:11:48,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:11:48,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:11:48,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:11:48,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:11:48,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:11:48,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:11:48,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:11:48,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:11:48,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:11:48,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:11:48,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:11:48,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:11:48,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:11:48,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:11:48,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:11:48,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:11:48,747 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:11:48,747 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:11:48,748 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:11:48,748 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:11:48,748 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:11:48,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:11:48,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:11:48,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:11:48,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:11:48,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:11:48,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:11:48,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:11:48,751 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:11:48,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2022-07-13 03:11:48,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:11:48,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:11:48,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:11:48,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:11:48,998 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:11:48,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-13 03:11:49,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e6c183/0d5f5f9c81154108a1863322a12eff55/FLAGc078d3c99 [2022-07-13 03:11:49,412 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:11:49,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-13 03:11:49,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e6c183/0d5f5f9c81154108a1863322a12eff55/FLAGc078d3c99 [2022-07-13 03:11:49,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9e6c183/0d5f5f9c81154108a1863322a12eff55 [2022-07-13 03:11:49,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:11:49,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:11:49,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:49,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:11:49,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:11:49,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3345c1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49, skipping insertion in model container [2022-07-13 03:11:49,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:11:49,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:11:49,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:49,560 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:11:49,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:11:49,574 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:11:49,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49 WrapperNode [2022-07-13 03:11:49,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:11:49,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:49,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:11:49,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:11:49,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,591 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-13 03:11:49,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:11:49,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:11:49,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:11:49,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:11:49,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:11:49,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:11:49,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:11:49,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:11:49,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (1/1) ... [2022-07-13 03:11:49,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:49,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:49,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:11:49,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:11:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:11:49,687 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:11:49,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:11:49,743 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:11:49,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:11:49,747 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:11:49,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:49 BoogieIcfgContainer [2022-07-13 03:11:49,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:11:49,749 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:11:49,749 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:11:49,751 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:11:49,751 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:49,751 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:11:49" (1/3) ... [2022-07-13 03:11:49,752 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e5457c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:49, skipping insertion in model container [2022-07-13 03:11:49,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:49,752 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:11:49" (2/3) ... [2022-07-13 03:11:49,753 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e5457c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:11:49, skipping insertion in model container [2022-07-13 03:11:49,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:11:49,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:49" (3/3) ... [2022-07-13 03:11:49,754 INFO L354 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2022-07-13 03:11:49,785 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:11:49,785 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:11:49,785 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:11:49,785 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:11:49,786 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:11:49,786 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:11:49,786 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:11:49,786 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:11:49,788 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) [2022-07-13 03:11:49,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:11:49,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:49,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:49,801 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:49,801 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:49,802 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:11:49,802 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) [2022-07-13 03:11:49,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:11:49,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:49,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:49,803 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:11:49,803 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:49,808 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 [2022-07-13 03:11:49,808 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 [2022-07-13 03:11:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:11:49,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:49,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127798561] [2022-07-13 03:11:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,874 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-07-13 03:11:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:49,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453399169] [2022-07-13 03:11:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,918 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:49,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:49,933 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-07-13 03:11:49,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:49,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233382587] [2022-07-13 03:11:49,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:49,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:49,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:50,034 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:50,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:50,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:50,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:50,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:50,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:50,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:50,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-13 03:11:50,036 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:50,036 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:50,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:50,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:50,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:11:50,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:50,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:50,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:50,190 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: [] [2022-07-13 03:11:50,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-13 03:11:50,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:50,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:50,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:11:50,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:50,251 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: [] [2022-07-13 03:11:50,267 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 [2022-07-13 03:11:50,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:11:50,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:50,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:50,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:50,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,316 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:11:50,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:50,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:50,341 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:50,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:50,356 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:50,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:50,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:50,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:50,356 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:50,356 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:50,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:50,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-13 03:11:50,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:50,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:50,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,427 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:50,430 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:50,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:11:50,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:50,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:50,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:50,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:50,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:50,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:50,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:50,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:50,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:50,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-13 03:11:50,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:11:50,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:50,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:50,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:50,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:50,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:50,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:50,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:50,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:50,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:50,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,537 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:11:50,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:50,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:50,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:50,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:50,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:50,555 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:50,555 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:50,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:50,584 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 [2022-07-13 03:11:50,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:11:50,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:50,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:50,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:50,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:50,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:50,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:50,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:50,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:50,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:50,616 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:50,616 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:50,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,619 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:11:50,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:50,652 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:50,652 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:50,652 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:50,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:50,676 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:50,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:50,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:50,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:50,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:50,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:50,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:50,755 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:50,756 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) [2022-07-13 03:11:50,791 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. [2022-07-13 03:11:50,800 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 [2022-07-13 03:11:50,803 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) [2022-07-13 03:11:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-13 03:11:50,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-13 03:11:50,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:50,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:11:50,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:50,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-13 03:11:50,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:50,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-07-13 03:11:50,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-13 03:11:50,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-07-13 03:11:50,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-13 03:11:50,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-13 03:11:50,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-07-13 03:11:50,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:50,812 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-07-13 03:11:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-07-13 03:11:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-07-13 03:11:50,825 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) [2022-07-13 03:11:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-07-13 03:11:50,826 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-13 03:11:50,826 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-13 03:11:50,826 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:11:50,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-07-13 03:11:50,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-13 03:11:50,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:50,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:50,828 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:11:50,828 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:50,828 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 [2022-07-13 03:11:50,828 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 [2022-07-13 03:11:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:11:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:50,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642851672] [2022-07-13 03:11:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:50,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:50,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:50,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-07-13 03:11:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:50,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128239983] [2022-07-13 03:11:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:50,838 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:50,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-07-13 03:11:50,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:50,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623789221] [2022-07-13 03:11:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:50,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:50,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623789221] [2022-07-13 03:11:50,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623789221] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:11:50,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:11:50,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:11:50,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817023559] [2022-07-13 03:11:50,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:11:50,892 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:50,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:50,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:50,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:50,892 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:50,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:50,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:50,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-13 03:11:50,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:50,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:50,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:50,954 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:50,954 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:50,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:50,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:50,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:50,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:50,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:11:50,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:50,987 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: [] [2022-07-13 03:11:51,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,006 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:11:51,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:51,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,046 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:11:51,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:51,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,133 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:51,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,140 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:51,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:51,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:51,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:51,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:51,141 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,141 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:51,141 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:51,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-13 03:11:51,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:51,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:51,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,271 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:51,271 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:51,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,273 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:11:51,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:51,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:51,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:51,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:51,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:51,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:51,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:51,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:51,327 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 [2022-07-13 03:11:51,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,329 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:11:51,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:51,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:51,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:51,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:51,359 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:11:51,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:51,363 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:11:51,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:51,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:51,400 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:51,400 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:51,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,402 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:11:51,404 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:51,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:51,404 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:51,404 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 [] [2022-07-13 03:11:51,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,420 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:51,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:51,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:51,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:51,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:51,472 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:51,472 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) [2022-07-13 03:11:51,502 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. [2022-07-13 03:11:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:51,504 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) [2022-07-13 03:11:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-13 03:11:51,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-13 03:11:51,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:51,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-13 03:11:51,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:51,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-13 03:11:51,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:51,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2022-07-13 03:11:51,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-13 03:11:51,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2022-07-13 03:11:51,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-13 03:11:51,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-13 03:11:51,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2022-07-13 03:11:51,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:51,506 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2022-07-13 03:11:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2022-07-13 03:11:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-13 03:11:51,507 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) [2022-07-13 03:11:51,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2022-07-13 03:11:51,508 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2022-07-13 03:11:51,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:51,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:11:51,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:11:51,510 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) [2022-07-13 03:11:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:51,518 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2022-07-13 03:11:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:11:51,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2022-07-13 03:11:51,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 03:11:51,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2022-07-13 03:11:51,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-13 03:11:51,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-13 03:11:51,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2022-07-13 03:11:51,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:51,520 INFO L369 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2022-07-13 03:11:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2022-07-13 03:11:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-07-13 03:11:51,522 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) [2022-07-13 03:11:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2022-07-13 03:11:51,522 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-13 03:11:51,522 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-13 03:11:51,522 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:11:51,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2022-07-13 03:11:51,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 03:11:51,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:51,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:51,523 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-13 03:11:51,523 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:51,523 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 [2022-07-13 03:11:51,523 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 [2022-07-13 03:11:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-13 03:11:51,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:51,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106122116] [2022-07-13 03:11:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:51,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:51,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-07-13 03:11:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:51,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304898504] [2022-07-13 03:11:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:51,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-07-13 03:11:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968116873] [2022-07-13 03:11:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,538 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:51,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:51,575 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:51,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:51,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:51,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:51,576 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:51,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:51,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:51,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-13 03:11:51,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:51,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:51,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,627 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 [2022-07-13 03:11:51,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:51,678 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:51,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,680 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:11:51,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:51,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:51,704 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: [] [2022-07-13 03:11:51,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,764 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:51,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:11:51,792 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:51,792 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: [] [2022-07-13 03:11:51,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,808 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:11:51,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:51,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-13 03:11:51,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,852 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:51,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:11:51,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:51,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:51,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:51,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:51,936 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:51,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:51,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:51,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:51,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:51,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:51,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:51,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-13 03:11:51,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:51,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:51,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:51,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:51,993 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:51,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:51,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:51,995 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:52,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,009 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:11:52,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:11:52,010 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:11:52,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:52,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:52,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,076 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:11:52,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:52,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:52,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:52,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:52,105 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:11:52,105 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:52,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,106 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:11:52,108 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:52,108 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:52,109 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:52,109 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 [] [2022-07-13 03:11:52,125 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 [2022-07-13 03:11:52,126 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:52,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:52,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:52,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:52,175 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:11:52,176 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) [2022-07-13 03:11:52,193 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. [2022-07-13 03:11:52,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:52,194 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) [2022-07-13 03:11:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-13 03:11:52,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-13 03:11:52,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-13 03:11:52,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-07-13 03:11:52,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2022-07-13 03:11:52,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:11:52,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2022-07-13 03:11:52,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-13 03:11:52,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-07-13 03:11:52,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2022-07-13 03:11:52,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:52,198 INFO L369 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2022-07-13 03:11:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2022-07-13 03:11:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2022-07-13 03:11:52,204 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) [2022-07-13 03:11:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2022-07-13 03:11:52,205 INFO L392 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-13 03:11:52,206 INFO L374 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-13 03:11:52,206 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:11:52,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2022-07-13 03:11:52,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:11:52,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:52,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:52,208 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:11:52,208 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:52,208 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 [2022-07-13 03:11:52,209 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 [2022-07-13 03:11:52,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-07-13 03:11:52,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:52,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698570644] [2022-07-13 03:11:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:52,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698570644] [2022-07-13 03:11:52,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698570644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:11:52,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:11:52,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:11:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702067823] [2022-07-13 03:11:52,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:11:52,226 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:11:52,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2022-07-13 03:11:52,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:52,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596187048] [2022-07-13 03:11:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:52,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:52,234 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:52,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:52,251 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:52,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:52,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:52,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:52,252 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:52,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:52,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:52,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-13 03:11:52,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:52,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:52,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,284 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:52,284 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:52,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,285 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:11:52,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:52,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,308 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:52,308 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: [] [2022-07-13 03:11:52,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,326 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:52,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:11:52,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:52,345 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: [] [2022-07-13 03:11:52,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,375 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:11:52,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:52,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:52,393 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: [] [2022-07-13 03:11:52,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,411 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:11:52,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:52,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,435 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:11:52,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:52,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,448 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:52,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-13 03:11:52,463 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:52,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:52,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:52,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:52,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:52,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:52,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:52,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-13 03:11:52,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:52,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:52,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,505 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:52,505 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:52,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,506 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:11:52,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:52,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:52,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:52,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:52,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 03:11:52,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,545 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:11:52,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:52,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:52,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:52,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-13 03:11:52,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,573 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 03:11:52,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:52,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:52,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:52,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-13 03:11:52,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,608 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 03:11:52,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:52,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:52,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:52,634 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:52,636 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:52,636 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:52,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,637 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:52,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:52,639 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:52,639 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:52,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-13 03:11:52,655 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 [2022-07-13 03:11:52,656 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:52,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:52,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:52,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:52,713 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:52,713 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) [2022-07-13 03:11:52,730 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. [2022-07-13 03:11:52,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:52,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:11:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-13 03:11:52,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-13 03:11:52,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-13 03:11:52,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2022-07-13 03:11:52,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:52,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 190 transitions. [2022-07-13 03:11:52,747 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-13 03:11:52,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 107 states and 175 transitions. [2022-07-13 03:11:52,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-13 03:11:52,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-07-13 03:11:52,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 175 transitions. [2022-07-13 03:11:52,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:52,753 INFO L369 hiAutomatonCegarLoop]: Abstraction has 107 states and 175 transitions. [2022-07-13 03:11:52,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 175 transitions. [2022-07-13 03:11:52,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2022-07-13 03:11:52,757 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) [2022-07-13 03:11:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 161 transitions. [2022-07-13 03:11:52,758 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 161 transitions. [2022-07-13 03:11:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:52,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:11:52,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:11:52,759 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) [2022-07-13 03:11:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:52,767 INFO L93 Difference]: Finished difference Result 107 states and 163 transitions. [2022-07-13 03:11:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:11:52,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 163 transitions. [2022-07-13 03:11:52,772 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-07-13 03:11:52,774 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 [2022-07-13 03:11:52,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 101 states and 153 transitions. [2022-07-13 03:11:52,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2022-07-13 03:11:52,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-07-13 03:11:52,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 153 transitions. [2022-07-13 03:11:52,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:52,795 INFO L369 hiAutomatonCegarLoop]: Abstraction has 101 states and 153 transitions. [2022-07-13 03:11:52,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 153 transitions. [2022-07-13 03:11:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2022-07-13 03:11:52,802 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) [2022-07-13 03:11:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2022-07-13 03:11:52,803 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-13 03:11:52,803 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-13 03:11:52,803 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:11:52,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 148 transitions. [2022-07-13 03:11:52,804 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 [2022-07-13 03:11:52,807 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-13 03:11:52,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:52,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:52,808 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2022-07-13 03:11:52,808 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:52,808 INFO L752 eck$LassoCheckResult]: Stem: 818#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 819#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 813#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 815#L12 assume !(10 == main_~i~0#1); 822#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 877#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 873#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 867#L12 assume !(10 == main_~i~0#1); 861#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 859#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 831#L18-1 [2022-07-13 03:11:52,808 INFO L754 eck$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 [2022-07-13 03:11:52,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1506873443, now seen corresponding path program 1 times [2022-07-13 03:11:52,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:52,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362714120] [2022-07-13 03:11:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:52,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:52,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362714120] [2022-07-13 03:11:52,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362714120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:11:52,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:11:52,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:11:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165616618] [2022-07-13 03:11:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:11:52,821 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:11:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 3 times [2022-07-13 03:11:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:52,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478506352] [2022-07-13 03:11:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:52,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:52,824 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:52,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:52,841 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:52,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:52,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:52,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:52,842 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:52,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:52,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:52,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-13 03:11:52,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:52,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:52,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:52,875 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:52,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,877 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-13 03:11:52,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:52,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,908 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:52,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-13 03:11:52,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:52,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:52,918 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:52,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:52,935 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:52,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:52,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:52,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:52,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:52,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:52,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:52,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-13 03:11:52,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:52,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:52,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:52,977 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:52,977 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:52,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:52,978 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) [2022-07-13 03:11:52,979 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 [2022-07-13 03:11:52,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:52,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:52,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:52,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:52,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:52,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:52,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:52,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:53,007 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 [2022-07-13 03:11:53,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,009 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) [2022-07-13 03:11:53,009 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 [2022-07-13 03:11:53,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:53,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:53,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:53,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:53,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:53,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:53,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:53,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:53,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:53,020 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:53,020 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:53,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,022 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-13 03:11:53,024 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:53,024 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:53,024 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:53,024 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-13 03:11:53,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:53,041 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:53,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,125 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,125 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) [2022-07-13 03:11:53,156 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. [2022-07-13 03:11:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,159 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) [2022-07-13 03:11:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-13 03:11:53,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-13 03:11:53,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,159 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:53,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,214 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,214 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) [2022-07-13 03:11:53,231 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. [2022-07-13 03:11:53,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,239 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) [2022-07-13 03:11:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-13 03:11:53,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-13 03:11:53,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,240 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,298 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,298 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) [2022-07-13 03:11:53,317 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. [2022-07-13 03:11:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,319 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) [2022-07-13 03:11:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-07-13 03:11:53,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-13 03:11:53,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-13 03:11:53,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2022-07-13 03:11:53,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 250 transitions. [2022-07-13 03:11:53,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2022-07-13 03:11:53,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 119 states and 180 transitions. [2022-07-13 03:11:53,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-13 03:11:53,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-07-13 03:11:53,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 180 transitions. [2022-07-13 03:11:53,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:53,323 INFO L369 hiAutomatonCegarLoop]: Abstraction has 119 states and 180 transitions. [2022-07-13 03:11:53,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 180 transitions. [2022-07-13 03:11:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-07-13 03:11:53,326 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) [2022-07-13 03:11:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2022-07-13 03:11:53,326 INFO L392 hiAutomatonCegarLoop]: Abstraction has 77 states and 117 transitions. [2022-07-13 03:11:53,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:53,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:11:53,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:11:53,327 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) [2022-07-13 03:11:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:53,332 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2022-07-13 03:11:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:11:53,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 79 transitions. [2022-07-13 03:11:53,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-13 03:11:53,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 51 states and 68 transitions. [2022-07-13 03:11:53,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-07-13 03:11:53,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-13 03:11:53,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 68 transitions. [2022-07-13 03:11:53,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:53,334 INFO L369 hiAutomatonCegarLoop]: Abstraction has 51 states and 68 transitions. [2022-07-13 03:11:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 68 transitions. [2022-07-13 03:11:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-07-13 03:11:53,336 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) [2022-07-13 03:11:53,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2022-07-13 03:11:53,336 INFO L392 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-13 03:11:53,336 INFO L374 stractBuchiCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-13 03:11:53,337 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:11:53,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 65 transitions. [2022-07-13 03:11:53,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-13 03:11:53,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:53,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:53,337 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:11:53,337 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:53,338 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 [2022-07-13 03:11:53,338 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 [2022-07-13 03:11:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2022-07-13 03:11:53,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:53,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012114809] [2022-07-13 03:11:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:53,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:53,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012114809] [2022-07-13 03:11:53,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012114809] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:11:53,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079089902] [2022-07-13 03:11:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:53,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:11:53,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,354 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) [2022-07-13 03:11:53,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-07-13 03:11:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:11:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079089902] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:11:53,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:11:53,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-13 03:11:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215891559] [2022-07-13 03:11:53,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:11:53,409 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:11:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2022-07-13 03:11:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:53,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809075834] [2022-07-13 03:11:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:53,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:53,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:53,438 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:53,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:53,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:53,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:53,438 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:53,438 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,438 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:53,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:53,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-13 03:11:53,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:53,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:53,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:53,495 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:53,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,496 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:53,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:53,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-13 03:11:53,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:53,508 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: [] [2022-07-13 03:11:53,523 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 [2022-07-13 03:11:53,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,524 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-13 03:11:53,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:53,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:53,536 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:53,536 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: [] [2022-07-13 03:11:53,553 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 [2022-07-13 03:11:53,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,554 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-13 03:11:53,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:53,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:53,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:53,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,604 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,605 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 [2022-07-13 03:11:53,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-13 03:11:53,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:53,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:53,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:53,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-13 03:11:53,684 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:53,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:53,684 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:53,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:53,684 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:53,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:53,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:53,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-13 03:11:53,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:53,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:53,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:53,740 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:53,740 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,741 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-13 03:11:53,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:53,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:53,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:53,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:53,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:53,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:53,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:53,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:53,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:53,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,781 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-13 03:11:53,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:53,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:53,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:53,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:53,788 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:11:53,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:53,789 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:11:53,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:53,790 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:53,792 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:53,792 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:53,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:53,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:53,793 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:53,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-13 03:11:53,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:53,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:53,795 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:53,795 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-13 03:11:53,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:53,810 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:53,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,851 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,851 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) [2022-07-13 03:11:53,868 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. [2022-07-13 03:11:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,869 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) [2022-07-13 03:11:53,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-13 03:11:53,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-13 03:11:53,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,870 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,907 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,908 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) [2022-07-13 03:11:53,924 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. [2022-07-13 03:11:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,924 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) [2022-07-13 03:11:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-13 03:11:53,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-13 03:11:53,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,924 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:53,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:53,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:53,964 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:53,964 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) [2022-07-13 03:11:53,982 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. [2022-07-13 03:11:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:53,983 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) [2022-07-13 03:11:53,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-13 03:11:53,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-13 03:11:53,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2022-07-13 03:11:53,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2022-07-13 03:11:53,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:53,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 124 transitions. [2022-07-13 03:11:53,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-13 03:11:53,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 56 states and 76 transitions. [2022-07-13 03:11:53,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-13 03:11:53,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-13 03:11:53,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 76 transitions. [2022-07-13 03:11:53,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:53,985 INFO L369 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-07-13 03:11:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 76 transitions. [2022-07-13 03:11:53,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2022-07-13 03:11:53,986 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) [2022-07-13 03:11:53,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2022-07-13 03:11:53,986 INFO L392 hiAutomatonCegarLoop]: Abstraction has 42 states and 57 transitions. [2022-07-13 03:11:53,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:53,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 03:11:53,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 03:11:53,987 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) [2022-07-13 03:11:54,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:54,014 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2022-07-13 03:11:54,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 03:11:54,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2022-07-13 03:11:54,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-07-13 03:11:54,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 72 states and 93 transitions. [2022-07-13 03:11:54,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-13 03:11:54,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-07-13 03:11:54,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 93 transitions. [2022-07-13 03:11:54,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:54,015 INFO L369 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2022-07-13 03:11:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 93 transitions. [2022-07-13 03:11:54,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2022-07-13 03:11:54,017 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) [2022-07-13 03:11:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-07-13 03:11:54,017 INFO L392 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-13 03:11:54,017 INFO L374 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-13 03:11:54,017 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:11:54,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2022-07-13 03:11:54,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-13 03:11:54,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:54,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:54,018 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:11:54,018 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:54,018 INFO L752 eck$LassoCheckResult]: Stem: 2294#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2303#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2308#L12 assume !(10 == main_~i~0#1); 2290#L12-2 assume !(0 == main_~i~0#1); 2291#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2322#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2304#L12 assume !(10 == main_~i~0#1); 2292#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2293#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2332#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2320#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2319#L12-2 [2022-07-13 03:11:54,018 INFO L754 eck$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 [2022-07-13 03:11:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2022-07-13 03:11:54,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:54,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187714022] [2022-07-13 03:11:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:54,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:11:54,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:54,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187714022] [2022-07-13 03:11:54,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187714022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:11:54,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:11:54,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 03:11:54,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340828348] [2022-07-13 03:11:54,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:11:54,033 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:11:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-07-13 03:11:54,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:54,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218477846] [2022-07-13 03:11:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:54,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:54,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:54,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:54,054 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:54,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:54,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:54,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:54,054 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:54,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:54,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:54,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-13 03:11:54,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:54,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:54,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:54,093 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:54,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,094 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-13 03:11:54,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:54,106 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: [] [2022-07-13 03:11:54,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,122 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) [2022-07-13 03:11:54,123 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 [2022-07-13 03:11:54,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,133 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:54,134 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: [] [2022-07-13 03:11:54,148 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 [2022-07-13 03:11:54,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,149 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-13 03:11:54,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,151 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:54,160 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: [] [2022-07-13 03:11:54,176 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 [2022-07-13 03:11:54,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,178 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-13 03:11:54,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,201 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-13 03:11:54,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:54,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,274 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:54,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,277 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:54,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:54,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:54,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:54,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:54,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:54,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:54,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-13 03:11:54,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:54,277 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:54,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:54,333 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:54,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,336 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-13 03:11:54,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:54,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:54,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:54,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:54,343 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:11:54,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:54,344 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-13 03:11:54,344 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:54,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:54,360 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 [2022-07-13 03:11:54,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,361 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-13 03:11:54,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:54,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:54,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:54,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:54,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:54,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:54,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:54,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:54,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,401 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-13 03:11:54,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:54,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:54,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:54,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:54,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:54,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:54,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:54,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:54,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,455 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) [2022-07-13 03:11:54,456 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 [2022-07-13 03:11:54,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:54,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:54,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:54,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:54,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:54,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:54,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:54,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:54,487 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:54,488 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:11:54,488 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:54,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,490 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-13 03:11:54,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:54,491 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:54,491 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:54,491 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 [] [2022-07-13 03:11:54,506 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 [2022-07-13 03:11:54,506 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:54,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:54,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:54,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:54,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:54,557 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:54,557 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) [2022-07-13 03:11:54,573 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. [2022-07-13 03:11:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:54,574 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) [2022-07-13 03:11:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-13 03:11:54,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-13 03:11:54,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:54,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-07-13 03:11:54,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:54,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-07-13 03:11:54,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:54,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2022-07-13 03:11:54,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-13 03:11:54,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 161 transitions. [2022-07-13 03:11:54,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-13 03:11:54,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-13 03:11:54,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2022-07-13 03:11:54,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:54,577 INFO L369 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2022-07-13 03:11:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2022-07-13 03:11:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2022-07-13 03:11:54,579 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) [2022-07-13 03:11:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2022-07-13 03:11:54,580 INFO L392 hiAutomatonCegarLoop]: Abstraction has 120 states and 155 transitions. [2022-07-13 03:11:54,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:54,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 03:11:54,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 03:11:54,580 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) [2022-07-13 03:11:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:54,596 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2022-07-13 03:11:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 03:11:54,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 174 transitions. [2022-07-13 03:11:54,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2022-07-13 03:11:54,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 174 transitions. [2022-07-13 03:11:54,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-13 03:11:54,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-13 03:11:54,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 174 transitions. [2022-07-13 03:11:54,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:54,599 INFO L369 hiAutomatonCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-07-13 03:11:54,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 174 transitions. [2022-07-13 03:11:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2022-07-13 03:11:54,601 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) [2022-07-13 03:11:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-07-13 03:11:54,601 INFO L392 hiAutomatonCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-13 03:11:54,601 INFO L374 stractBuchiCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-13 03:11:54,601 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:11:54,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 147 transitions. [2022-07-13 03:11:54,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-13 03:11:54,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:54,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:54,603 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-07-13 03:11:54,603 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-13 03:11:54,603 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 [2022-07-13 03:11:54,603 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 [2022-07-13 03:11:54,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2022-07-13 03:11:54,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:54,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184478666] [2022-07-13 03:11:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:54,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 03:11:54,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:54,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184478666] [2022-07-13 03:11:54,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184478666] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:11:54,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849559880] [2022-07-13 03:11:54,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 03:11:54,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:11:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,638 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) [2022-07-13 03:11:54,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-07-13 03:11:54,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-13 03:11:54,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:11:54,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:54,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:54,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:54,706 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 [2022-07-13 03:11:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 03:11:54,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:11:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-13 03:11:54,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849559880] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:11:54,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:11:54,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-07-13 03:11:54,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326077461] [2022-07-13 03:11:54,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:11:54,735 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:11:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-07-13 03:11:54,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:54,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802382490] [2022-07-13 03:11:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:54,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:54,738 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:54,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:54,765 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:54,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:54,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:54,766 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:54,766 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:54,766 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,766 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:54,766 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:54,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-13 03:11:54,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:54,766 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:54,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:54,809 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:54,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,810 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-07-13 03:11:54,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,833 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:54,833 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: [] [2022-07-13 03:11:54,848 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 [2022-07-13 03:11:54,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,849 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-07-13 03:11:54,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:54,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-07-13 03:11:54,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:54,887 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:54,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-07-13 03:11:54,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:54,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:54,969 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:54,972 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 [2022-07-13 03:11:54,972 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:54,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:54,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:54,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:54,972 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:54,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:54,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:54,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:54,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-13 03:11:54,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:54,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:54,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:54,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:55,051 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:55,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:55,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:55,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:55,053 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:55,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-07-13 03:11:55,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:55,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:55,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:55,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:55,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:55,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:55,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:55,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:55,101 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 [2022-07-13 03:11:55,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:55,102 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:55,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-07-13 03:11:55,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:55,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:55,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:55,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:55,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:55,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:55,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:55,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:55,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:55,116 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:11:55,116 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:11:55,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:55,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:55,117 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:55,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-07-13 03:11:55,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:55,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:55,120 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:55,120 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 [] [2022-07-13 03:11:55,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-07-13 03:11:55,134 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:55,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:55,191 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:55,191 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) [2022-07-13 03:11:55,218 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. [2022-07-13 03:11:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:55,218 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) [2022-07-13 03:11:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-13 03:11:55,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-13 03:11:55,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:55,219 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:55,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:55,266 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:55,266 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) [2022-07-13 03:11:55,286 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. [2022-07-13 03:11:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:55,286 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) [2022-07-13 03:11:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-07-13 03:11:55,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-13 03:11:55,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:55,287 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:11:55,344 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:11:55,344 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) [2022-07-13 03:11:55,362 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. [2022-07-13 03:11:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:11:55,363 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) [2022-07-13 03:11:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-13 03:11:55,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-13 03:11:55,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:55,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-07-13 03:11:55,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:55,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-07-13 03:11:55,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:55,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 219 transitions. [2022-07-13 03:11:55,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2022-07-13 03:11:55,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 121 states and 151 transitions. [2022-07-13 03:11:55,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-13 03:11:55,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-13 03:11:55,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 151 transitions. [2022-07-13 03:11:55,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:55,366 INFO L369 hiAutomatonCegarLoop]: Abstraction has 121 states and 151 transitions. [2022-07-13 03:11:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 151 transitions. [2022-07-13 03:11:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2022-07-13 03:11:55,367 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) [2022-07-13 03:11:55,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2022-07-13 03:11:55,367 INFO L392 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2022-07-13 03:11:55,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:55,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 03:11:55,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 03:11:55,368 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) [2022-07-13 03:11:55,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:55,422 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2022-07-13 03:11:55,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 03:11:55,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2022-07-13 03:11:55,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2022-07-13 03:11:55,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 153 states and 188 transitions. [2022-07-13 03:11:55,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-13 03:11:55,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-13 03:11:55,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 188 transitions. [2022-07-13 03:11:55,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:55,424 INFO L369 hiAutomatonCegarLoop]: Abstraction has 153 states and 188 transitions. [2022-07-13 03:11:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 188 transitions. [2022-07-13 03:11:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 104. [2022-07-13 03:11:55,425 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) [2022-07-13 03:11:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-07-13 03:11:55,426 INFO L392 hiAutomatonCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-13 03:11:55,426 INFO L374 stractBuchiCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-13 03:11:55,426 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-13 03:11:55,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 126 transitions. [2022-07-13 03:11:55,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-07-13 03:11:55,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:55,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:55,427 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-13 03:11:55,427 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2022-07-13 03:11:55,427 INFO L752 eck$LassoCheckResult]: Stem: 4245#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 assume !(10 == main_~i~0#1); 4265#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4263#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4255#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 [2022-07-13 03:11:55,427 INFO L754 eck$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 [2022-07-13 03:11:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 2 times [2022-07-13 03:11:55,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:55,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329215835] [2022-07-13 03:11:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:55,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1466490324, now seen corresponding path program 1 times [2022-07-13 03:11:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:55,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159512897] [2022-07-13 03:11:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-13 03:11:55,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:55,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159512897] [2022-07-13 03:11:55,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159512897] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:11:55,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711816676] [2022-07-13 03:11:55,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:11:55,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:55,482 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) [2022-07-13 03:11:55,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-07-13 03:11:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-13 03:11:55,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:11:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-13 03:11:55,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711816676] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:11:55,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:11:55,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-13 03:11:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023970460] [2022-07-13 03:11:55,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:11:55,573 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:11:55,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 03:11:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 03:11:55,574 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) [2022-07-13 03:11:55,598 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 [2022-07-13 03:11:55,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:55,633 INFO L93 Difference]: Finished difference Result 198 states and 243 transitions. [2022-07-13 03:11:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 03:11:55,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 243 transitions. [2022-07-13 03:11:55,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2022-07-13 03:11:55,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 173 states and 213 transitions. [2022-07-13 03:11:55,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-13 03:11:55,642 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-13 03:11:55,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 213 transitions. [2022-07-13 03:11:55,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:55,642 INFO L369 hiAutomatonCegarLoop]: Abstraction has 173 states and 213 transitions. [2022-07-13 03:11:55,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 213 transitions. [2022-07-13 03:11:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2022-07-13 03:11:55,644 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) [2022-07-13 03:11:55,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2022-07-13 03:11:55,644 INFO L392 hiAutomatonCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-13 03:11:55,644 INFO L374 stractBuchiCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-13 03:11:55,645 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-13 03:11:55,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 201 transitions. [2022-07-13 03:11:55,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2022-07-13 03:11:55,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:55,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:55,646 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-13 03:11:55,646 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2022-07-13 03:11:55,646 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 [2022-07-13 03:11:55,646 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 [2022-07-13 03:11:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 3 times [2022-07-13 03:11:55,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:55,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873535584] [2022-07-13 03:11:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash 726843037, now seen corresponding path program 2 times [2022-07-13 03:11:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:55,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501620323] [2022-07-13 03:11:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,660 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:55,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:55,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1110135673, now seen corresponding path program 4 times [2022-07-13 03:11:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:55,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730522228] [2022-07-13 03:11:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-13 03:11:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:55,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730522228] [2022-07-13 03:11:55,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730522228] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:11:55,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580996560] [2022-07-13 03:11:55,712 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 03:11:55,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:11:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:55,717 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) [2022-07-13 03:11:55,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2022-07-13 03:11:55,767 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 03:11:55,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:11:55,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:11:55,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-13 03:11:55,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:11:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-13 03:11:55,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580996560] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:11:55,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:11:55,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-13 03:11:55,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944836542] [2022-07-13 03:11:55,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:11:56,080 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:56,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:56,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:56,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:56,080 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:11:56,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,081 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:56,081 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:56,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-13 03:11:56,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:56,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:56,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,118 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:56,118 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:11:56,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,120 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-07-13 03:11:56,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:56,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:56,142 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:56,142 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: [] [2022-07-13 03:11:56,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,158 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-07-13 03:11:56,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:56,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:56,170 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:11:56,170 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: [] [2022-07-13 03:11:56,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,186 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-07-13 03:11:56,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:11:56,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:56,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,225 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-07-13 03:11:56,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:11:56,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:11:56,235 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:11:56,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,250 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:11:56,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:11:56,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:11:56,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:11:56,250 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:11:56,250 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,250 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:11:56,250 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:11:56,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-13 03:11:56,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:11:56,250 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:11:56,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:11:56,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:11:56,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:11:56,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,292 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-07-13 03:11:56,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:56,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:56,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:56,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:56,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:56,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:56,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:56,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:56,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:56,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,335 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-07-13 03:11:56,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:56,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:56,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:56,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:56,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:56,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:11:56,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:11:56,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:11:56,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:56,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,370 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-07-13 03:11:56,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:11:56,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:11:56,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:11:56,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:11:56,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:11:56,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:11:56,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:11:56,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:11:56,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:11:56,401 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:11:56,402 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:11:56,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:11:56,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:11:56,403 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:11:56,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-07-13 03:11:56,404 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:11:56,405 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:11:56,405 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:11:56,405 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 [] [2022-07-13 03:11:56,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-07-13 03:11:56,420 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:11:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-13 03:11:56,548 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-13 03:11:56,548 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) [2022-07-13 03:11:56,614 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. [2022-07-13 03:11:56,615 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 [2022-07-13 03:11:56,615 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) [2022-07-13 03:11:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2022-07-13 03:11:56,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-13 03:11:56,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:56,615 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-13 03:11:56,739 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 [2022-07-13 03:11:56,739 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) [2022-07-13 03:11:56,926 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. [2022-07-13 03:11:56,927 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 [2022-07-13 03:11:56,927 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) [2022-07-13 03:11:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2022-07-13 03:11:56,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 67 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-13 03:11:56,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:56,928 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:56,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:11:56,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:57,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-13 03:11:57,059 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 [2022-07-13 03:11:57,059 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) [2022-07-13 03:11:57,238 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. [2022-07-13 03:11:57,239 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 [2022-07-13 03:11:57,239 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) [2022-07-13 03:11:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 76 transitions. [2022-07-13 03:11:57,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 76 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-13 03:11:57,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:57,241 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:11:57,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:57,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:11:57,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:57,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:11:57,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:11:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-13 03:11:57,360 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 [2022-07-13 03:11:57,361 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) [2022-07-13 03:11:57,526 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. [2022-07-13 03:11:57,527 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 [2022-07-13 03:11:57,527 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) [2022-07-13 03:11:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 78 transitions. [2022-07-13 03:11:57,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-13 03:11:57,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:57,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 71 letters. Loop has 64 letters. [2022-07-13 03:11:57,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:57,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 128 letters. [2022-07-13 03:11:57,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:11:57,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1639 states and 1887 transitions. [2022-07-13 03:11:57,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 307 [2022-07-13 03:11:57,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1639 states to 522 states and 614 transitions. [2022-07-13 03:11:57,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-13 03:11:57,539 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2022-07-13 03:11:57,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 614 transitions. [2022-07-13 03:11:57,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:57,539 INFO L369 hiAutomatonCegarLoop]: Abstraction has 522 states and 614 transitions. [2022-07-13 03:11:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 614 transitions. [2022-07-13 03:11:57,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 163. [2022-07-13 03:11:57,541 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) [2022-07-13 03:11:57,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2022-07-13 03:11:57,542 INFO L392 hiAutomatonCegarLoop]: Abstraction has 163 states and 197 transitions. [2022-07-13 03:11:57,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 03:11:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 03:11:57,543 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) [2022-07-13 03:11:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:57,584 INFO L93 Difference]: Finished difference Result 398 states and 454 transitions. [2022-07-13 03:11:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 03:11:57,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 454 transitions. [2022-07-13 03:11:57,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 195 [2022-07-13 03:11:57,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 298 states and 353 transitions. [2022-07-13 03:11:57,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2022-07-13 03:11:57,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2022-07-13 03:11:57,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 353 transitions. [2022-07-13 03:11:57,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:57,587 INFO L369 hiAutomatonCegarLoop]: Abstraction has 298 states and 353 transitions. [2022-07-13 03:11:57,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 353 transitions. [2022-07-13 03:11:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 152. [2022-07-13 03:11:57,589 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) [2022-07-13 03:11:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2022-07-13 03:11:57,590 INFO L392 hiAutomatonCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-13 03:11:57,590 INFO L374 stractBuchiCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-13 03:11:57,590 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-13 03:11:57,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 183 transitions. [2022-07-13 03:11:57,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 88 [2022-07-13 03:11:57,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:57,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:57,591 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-13 03:11:57,591 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [21, 20, 19, 11, 10, 2, 1] [2022-07-13 03:11:57,591 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 [2022-07-13 03:11:57,591 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 [2022-07-13 03:11:57,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 4 times [2022-07-13 03:11:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:57,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429297547] [2022-07-13 03:11:57,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,595 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:57,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1840948782, now seen corresponding path program 3 times [2022-07-13 03:11:57,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:57,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115989134] [2022-07-13 03:11:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:57,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:11:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-13 03:11:57,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:11:57,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115989134] [2022-07-13 03:11:57,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115989134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:11:57,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:11:57,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 03:11:57,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027050339] [2022-07-13 03:11:57,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:11:57,620 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:11:57,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:11:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 03:11:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 03:11:57,621 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) [2022-07-13 03:11:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:11:57,630 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2022-07-13 03:11:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 03:11:57,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 181 transitions. [2022-07-13 03:11:57,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-13 03:11:57,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 144 states and 170 transitions. [2022-07-13 03:11:57,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-13 03:11:57,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-07-13 03:11:57,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 170 transitions. [2022-07-13 03:11:57,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:11:57,632 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 170 transitions. [2022-07-13 03:11:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 170 transitions. [2022-07-13 03:11:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2022-07-13 03:11:57,633 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) [2022-07-13 03:11:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2022-07-13 03:11:57,634 INFO L392 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-13 03:11:57,634 INFO L374 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-13 03:11:57,634 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-13 03:11:57,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2022-07-13 03:11:57,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-13 03:11:57,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:11:57,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:11:57,635 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 1, 1, 1] [2022-07-13 03:11:57,635 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-07-13 03:11:57,635 INFO L752 eck$LassoCheckResult]: Stem: 11904#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 11905#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11917#L12 assume !(10 == main_~i~0#1); 11918#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11919#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11900#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11901#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11937#L12 assume !(10 == main_~i~0#1); 11920#L12-2 [2022-07-13 03:11:57,635 INFO L754 eck$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 [2022-07-13 03:11:57,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,636 INFO L85 PathProgramCache]: Analyzing trace with hash 781927031, now seen corresponding path program 1 times [2022-07-13 03:11:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:57,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103340498] [2022-07-13 03:11:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:57,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,639 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:57,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash 921517193, now seen corresponding path program 4 times [2022-07-13 03:11:57,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:57,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568598953] [2022-07-13 03:11:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,648 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:11:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 933372671, now seen corresponding path program 5 times [2022-07-13 03:11:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:11:57,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011013689] [2022-07-13 03:11:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:11:57,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:11:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,662 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:11:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:11:57,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:11:58,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:11:58 BoogieIcfgContainer [2022-07-13 03:11:58,112 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:11:58,112 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:11:58,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:11:58,113 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:11:58,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:11:49" (3/4) ... [2022-07-13 03:11:58,114 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 03:11:58,139 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 03:11:58,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:11:58,140 INFO L158 Benchmark]: Toolchain (without parser) took 8711.40ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 74.6MB in the beginning and 94.3MB in the end (delta: -19.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,140 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:58,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.08ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 85.9MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.09ms. Allocated memory is still 109.1MB. Free memory was 85.3MB in the beginning and 84.4MB in the end (delta: 925.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:11:58,141 INFO L158 Benchmark]: Boogie Preprocessor took 9.02ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 83.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,141 INFO L158 Benchmark]: RCFGBuilder took 146.73ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 75.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,141 INFO L158 Benchmark]: BuchiAutomizer took 8363.38ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 74.8MB in the beginning and 97.5MB in the end (delta: -22.7MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,142 INFO L158 Benchmark]: Witness Printer took 27.27ms. Allocated memory is still 132.1MB. Free memory was 97.5MB in the beginning and 94.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 03:11:58,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.08ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 85.9MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.09ms. Allocated memory is still 109.1MB. Free memory was 85.3MB in the beginning and 84.4MB in the end (delta: 925.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.02ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 83.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 146.73ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 75.4MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8363.38ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 74.8MB in the beginning and 97.5MB in the end (delta: -22.7MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Witness Printer took 27.27ms. Allocated memory is still 132.1MB. Free memory was 97.5MB in the beginning and 94.3MB in the end (delta: 3.2MB). 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 8.3s and 12 iterations. TraceHistogramMax:21. Analysis of lassos took 5.6s. Construction of modules took 0.4s. Büchi inclusion checks took 1.9s. 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, 0.6s 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: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s 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@58c05432=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! [2022-07-13 03:11:58,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:58,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:58,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-07-13 03:11:58,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-07-13 03:11:58,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)