./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 3dbbec33 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-?-3dbbec3 [2023-02-14 14:44:48,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:44:48,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:44:48,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:44:48,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:44:48,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:44:48,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:44:48,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:44:48,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:44:48,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:44:48,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:44:48,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:44:48,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:44:48,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:44:48,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:44:48,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:44:48,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:44:48,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:44:48,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:44:48,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:44:48,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:44:48,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:44:48,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:44:48,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:44:48,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:44:48,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:44:48,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:44:48,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:44:48,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:44:48,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:44:48,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:44:48,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:44:48,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:44:48,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:44:48,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:44:48,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:44:48,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:44:48,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:44:48,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:44:48,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:44:48,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:44:48,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:44:48,869 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:44:48,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:44:48,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:44:48,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:44:48,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:44:48,871 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:44:48,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:44:48,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:44:48,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:44:48,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:44:48,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:44:48,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:44:48,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:44:48,873 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:44:48,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2023-02-14 14:44:49,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:44:49,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:44:49,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:44:49,071 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:44:49,073 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:44:49,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-02-14 14:44:50,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:44:50,151 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:44:50,151 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-02-14 14:44:50,155 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216489765/b1b59129ad1841e397015feda1a2520e/FLAGf9b1b8130 [2023-02-14 14:44:50,163 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216489765/b1b59129ad1841e397015feda1a2520e [2023-02-14 14:44:50,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:44:50,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:44:50,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:44:50,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:44:50,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:44:50,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8240cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50, skipping insertion in model container [2023-02-14 14:44:50,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:44:50,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:44:50,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:44:50,268 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:44:50,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:44:50,283 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:44:50,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50 WrapperNode [2023-02-14 14:44:50,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:44:50,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:44:50,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:44:50,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:44:50,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,300 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-14 14:44:50,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:44:50,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:44:50,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:44:50,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:44:50,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:44:50,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:44:50,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:44:50,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:44:50,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (1/1) ... [2023-02-14 14:44:50,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:50,333 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) [2023-02-14 14:44:50,335 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 [2023-02-14 14:44:50,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:44:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:44:50,399 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:44:50,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:44:50,444 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:44:50,448 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:44:50,448 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 14:44:50,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:50 BoogieIcfgContainer [2023-02-14 14:44:50,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:44:50,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:44:50,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:44:50,452 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:44:50,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:50,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:44:50" (1/3) ... [2023-02-14 14:44:50,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736ff3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:44:50, skipping insertion in model container [2023-02-14 14:44:50,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:50,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:50" (2/3) ... [2023-02-14 14:44:50,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@736ff3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:44:50, skipping insertion in model container [2023-02-14 14:44:50,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:50,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:50" (3/3) ... [2023-02-14 14:44:50,455 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2023-02-14 14:44:50,487 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:44:50,487 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:44:50,487 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:44:50,487 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:44:50,487 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:44:50,487 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:44:50,487 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:44:50,487 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:44:50,490 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) [2023-02-14 14:44:50,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:44:50,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:50,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:50,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:44:50,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:50,502 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:44:50,502 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) [2023-02-14 14:44:50,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:44:50,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:50,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:50,504 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:44:50,504 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:50,510 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2023-02-14 14:44:50,510 INFO L750 eck$LassoCheckResult]: Loop: 4#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; 4#L18-1true [2023-02-14 14:44:50,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:44:50,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:50,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311792823] [2023-02-14 14:44:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:50,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2023-02-14 14:44:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:50,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257782809] [2023-02-14 14:44:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2023-02-14 14:44:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:50,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988785927] [2023-02-14 14:44:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:50,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:50,718 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:50,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:50,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:50,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:50,719 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:50,719 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,719 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:50,719 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:50,719 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2023-02-14 14:44:50,719 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:50,719 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:50,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,774 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,824 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:50,825 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:50,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:50,829 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) [2023-02-14 14:44:50,831 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 [2023-02-14 14:44:50,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:50,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:50,853 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:50,853 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: [] [2023-02-14 14:44:50,866 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 [2023-02-14 14:44:50,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:50,869 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) [2023-02-14 14:44:50,870 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 [2023-02-14 14:44:50,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:50,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:50,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:50,890 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: [] [2023-02-14 14:44:50,896 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 [2023-02-14 14:44:50,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:50,898 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) [2023-02-14 14:44:50,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:50,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:50,933 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 [2023-02-14 14:44:50,946 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 [2023-02-14 14:44:50,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:50,948 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) [2023-02-14 14:44:50,950 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 [2023-02-14 14:44:50,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:50,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:50,976 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:50,982 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 [2023-02-14 14:44:50,982 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:50,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:50,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:50,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:50,982 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:50,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:50,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:50,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:50,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2023-02-14 14:44:50,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:50,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:50,984 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,993 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:50,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:51,052 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:51,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,054 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) [2023-02-14 14:44:51,057 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 [2023-02-14 14:44:51,060 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 [2023-02-14 14:44:51,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:51,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:51,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:51,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:51,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:51,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:51,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,088 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) [2023-02-14 14:44:51,090 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 [2023-02-14 14:44:51,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:51,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:51,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:51,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:51,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:51,132 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 [2023-02-14 14:44:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,134 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) [2023-02-14 14:44:51,136 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 [2023-02-14 14:44:51,138 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 [2023-02-14 14:44:51,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:51,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:51,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:51,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:51,174 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 [2023-02-14 14:44:51,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,185 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) [2023-02-14 14:44:51,187 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 [2023-02-14 14:44:51,188 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 [2023-02-14 14:44:51,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:51,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:51,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:51,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:51,212 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:51,225 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:51,225 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:51,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,228 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) [2023-02-14 14:44:51,230 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 [2023-02-14 14:44:51,231 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:51,232 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:51,232 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:51,232 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 [] [2023-02-14 14:44:51,252 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 [2023-02-14 14:44:51,254 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:51,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:51,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:51,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:51,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:51,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:51,359 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:51,361 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) [2023-02-14 14:44:51,410 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. [2023-02-14 14:44:51,411 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 [2023-02-14 14:44:51,414 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) [2023-02-14 14:44:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-02-14 14:44:51,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-14 14:44:51,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:51,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-14 14:44:51,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:51,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-14 14:44:51,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:51,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2023-02-14 14:44:51,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-14 14:44:51,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2023-02-14 14:44:51,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-14 14:44:51,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-14 14:44:51,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2023-02-14 14:44:51,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:51,423 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2023-02-14 14:44:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2023-02-14 14:44:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-02-14 14:44:51,438 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) [2023-02-14 14:44:51,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2023-02-14 14:44:51,439 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-14 14:44:51,439 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-02-14 14:44:51,439 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:44:51,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2023-02-14 14:44:51,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-14 14:44:51,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:51,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:51,441 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:44:51,441 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:51,441 INFO L748 eck$LassoCheckResult]: Stem: 100#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 101#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; 105#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 97#L12 [2023-02-14 14:44:51,441 INFO L750 eck$LassoCheckResult]: Loop: 97#L12 assume !(10 == main_~i~0#1); 106#L12-2 assume !(0 == main_~i~0#1); 107#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 96#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 97#L12 [2023-02-14 14:44:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 14:44:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:51,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098023648] [2023-02-14 14:44:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:51,445 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:51,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2023-02-14 14:44:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:51,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397642988] [2023-02-14 14:44:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:51,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:51,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:51,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:51,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2023-02-14 14:44:51,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:51,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688452520] [2023-02-14 14:44:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:51,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:51,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688452520] [2023-02-14 14:44:51,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688452520] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:51,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:51,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:44:51,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041056548] [2023-02-14 14:44:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:51,520 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:51,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:51,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:51,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:51,521 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:51,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:51,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:51,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2023-02-14 14:44:51,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:51,522 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:51,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,530 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,596 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:51,596 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:51,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,598 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) [2023-02-14 14:44:51,601 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 [2023-02-14 14:44:51,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:51,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:51,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:51,625 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: [] [2023-02-14 14:44:51,633 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 [2023-02-14 14:44:51,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,634 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) [2023-02-14 14:44:51,635 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 [2023-02-14 14:44:51,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:51,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:51,652 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 [2023-02-14 14:44:51,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,653 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) [2023-02-14 14:44:51,655 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 [2023-02-14 14:44:51,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:51,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:51,746 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:51,750 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 [2023-02-14 14:44:51,750 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:51,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:51,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:51,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:51,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:51,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:51,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:51,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2023-02-14 14:44:51,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:51,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:51,752 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,755 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,762 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:51,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:51,829 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:51,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,830 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) [2023-02-14 14:44:51,832 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 [2023-02-14 14:44:51,833 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 [2023-02-14 14:44:51,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:51,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:51,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:51,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:51,870 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 [2023-02-14 14:44:51,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,871 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) [2023-02-14 14:44:51,873 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 [2023-02-14 14:44:51,874 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 [2023-02-14 14:44:51,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:51,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:51,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:51,881 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:44:51,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:51,882 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:44:51,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:51,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:51,893 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:51,893 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:51,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:51,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:51,896 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) [2023-02-14 14:44:51,897 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 [2023-02-14 14:44:51,898 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:51,898 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:51,898 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:51,898 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 [] [2023-02-14 14:44:51,905 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 [2023-02-14 14:44:51,906 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:51,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:51,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:51,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:51,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:51,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:51,979 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:51,980 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) [2023-02-14 14:44:52,034 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. [2023-02-14 14:44:52,034 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 [2023-02-14 14:44:52,035 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) [2023-02-14 14:44:52,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 14:44:52,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-14 14:44:52,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-14 14:44:52,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-02-14 14:44:52,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2023-02-14 14:44:52,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:44:52,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2023-02-14 14:44:52,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-14 14:44:52,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-14 14:44:52,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2023-02-14 14:44:52,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:52,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2023-02-14 14:44:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2023-02-14 14:44:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-02-14 14:44:52,051 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) [2023-02-14 14:44:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2023-02-14 14:44:52,051 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2023-02-14 14:44:52,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:52,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:44:52,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:44:52,054 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) [2023-02-14 14:44:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:52,074 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2023-02-14 14:44:52,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2023-02-14 14:44:52,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-14 14:44:52,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2023-02-14 14:44:52,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-02-14 14:44:52,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-02-14 14:44:52,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2023-02-14 14:44:52,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:52,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2023-02-14 14:44:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2023-02-14 14:44:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-02-14 14:44:52,078 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) [2023-02-14 14:44:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2023-02-14 14:44:52,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2023-02-14 14:44:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:44:52,090 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2023-02-14 14:44:52,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:44:52,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2023-02-14 14:44:52,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-14 14:44:52,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:52,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:52,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 14:44:52,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:52,095 INFO L748 eck$LassoCheckResult]: Stem: 243#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 244#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 247#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 252#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 234#L12-2 assume !(0 == main_~i~0#1); 236#L15-1 [2023-02-14 14:44:52,095 INFO L750 eck$LassoCheckResult]: Loop: 236#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 245#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 256#L12 assume !(10 == main_~i~0#1); 254#L12-2 assume !(0 == main_~i~0#1); 236#L15-1 [2023-02-14 14:44:52,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2023-02-14 14:44:52,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:52,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837508020] [2023-02-14 14:44:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:52,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2023-02-14 14:44:52,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:52,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208266606] [2023-02-14 14:44:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2023-02-14 14:44:52,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:52,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404591368] [2023-02-14 14:44:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:52,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:52,131 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:52,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:52,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:52,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:52,131 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:52,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:52,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:52,132 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2023-02-14 14:44:52,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:52,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:52,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,136 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,163 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 [2023-02-14 14:44:52,167 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 [2023-02-14 14:44:52,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:52,203 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:52,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,205 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) [2023-02-14 14:44:52,207 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 [2023-02-14 14:44:52,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:52,237 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: [] [2023-02-14 14:44:52,243 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 [2023-02-14 14:44:52,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,249 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) [2023-02-14 14:44:52,251 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 [2023-02-14 14:44:52,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:52,265 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: [] [2023-02-14 14:44:52,268 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 [2023-02-14 14:44:52,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,269 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) [2023-02-14 14:44:52,270 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 [2023-02-14 14:44:52,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:52,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,286 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) [2023-02-14 14:44:52,287 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 [2023-02-14 14:44:52,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:52,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,359 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:52,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-14 14:44:52,366 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:52,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:52,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:52,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:52,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:52,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:52,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:52,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2023-02-14 14:44:52,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:52,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:52,367 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:52,447 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,448 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) [2023-02-14 14:44:52,449 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 [2023-02-14 14:44:52,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:52,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:52,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,459 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:44:52,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,460 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:44:52,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:52,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:52,493 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 [2023-02-14 14:44:52,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,509 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) [2023-02-14 14:44:52,511 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 [2023-02-14 14:44:52,512 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 [2023-02-14 14:44:52,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:52,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:52,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:52,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:52,534 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:52,536 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:44:52,536 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:52,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,537 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) [2023-02-14 14:44:52,539 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 [2023-02-14 14:44:52,540 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:52,540 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:52,540 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:52,540 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 [] [2023-02-14 14:44:52,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-14 14:44:52,543 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:52,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:52,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:52,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:52,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:52,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:52,593 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:44:52,593 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) [2023-02-14 14:44:52,613 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. [2023-02-14 14:44:52,613 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 [2023-02-14 14:44:52,614 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) [2023-02-14 14:44:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:44:52,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-14 14:44:52,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-14 14:44:52,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2023-02-14 14:44:52,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:52,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2023-02-14 14:44:52,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-02-14 14:44:52,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2023-02-14 14:44:52,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-02-14 14:44:52,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2023-02-14 14:44:52,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2023-02-14 14:44:52,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:52,619 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2023-02-14 14:44:52,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2023-02-14 14:44:52,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-02-14 14:44:52,622 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) [2023-02-14 14:44:52,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2023-02-14 14:44:52,623 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2023-02-14 14:44:52,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2023-02-14 14:44:52,623 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 14:44:52,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2023-02-14 14:44:52,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2023-02-14 14:44:52,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:52,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:52,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:44:52,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:52,625 INFO L748 eck$LassoCheckResult]: Stem: 387#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 388#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; 392#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 420#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 418#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 416#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 412#L18-1 [2023-02-14 14:44:52,625 INFO L750 eck$LassoCheckResult]: Loop: 412#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 409#L12 assume !(10 == main_~i~0#1); 401#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 402#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 412#L18-1 [2023-02-14 14:44:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,625 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2023-02-14 14:44:52,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:52,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396460579] [2023-02-14 14:44:52,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:52,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:52,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:52,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396460579] [2023-02-14 14:44:52,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396460579] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:52,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:52,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:44:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321257721] [2023-02-14 14:44:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:52,642 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:52,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2023-02-14 14:44:52,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:52,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025269720] [2023-02-14 14:44:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:52,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:52,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:52,662 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:52,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:52,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:52,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:52,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:52,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:52,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:52,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2023-02-14 14:44:52,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:52,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:52,663 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,672 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:52,699 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:52,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,700 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:52,702 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 [2023-02-14 14:44:52,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:52,722 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: [] [2023-02-14 14:44:52,727 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 [2023-02-14 14:44:52,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,729 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) [2023-02-14 14:44:52,731 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 [2023-02-14 14:44:52,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:52,753 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: [] [2023-02-14 14:44:52,758 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 [2023-02-14 14:44:52,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,760 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) [2023-02-14 14:44:52,762 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 [2023-02-14 14:44:52,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:52,784 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: [] [2023-02-14 14:44:52,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-14 14:44:52,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,788 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) [2023-02-14 14:44:52,790 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 [2023-02-14 14:44:52,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:52,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-14 14:44:52,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,816 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) [2023-02-14 14:44:52,817 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 [2023-02-14 14:44:52,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:52,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:52,840 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:52,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:52,843 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:52,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:52,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:52,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:52,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:52,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:52,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:52,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2023-02-14 14:44:52,843 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:52,843 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:52,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:52,884 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:52,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:52,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,886 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) [2023-02-14 14:44:52,887 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 [2023-02-14 14:44:52,889 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 [2023-02-14 14:44:52,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:52,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:52,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:52,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:52,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:52,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:52,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,914 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) [2023-02-14 14:44:52,916 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 [2023-02-14 14:44:52,917 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 [2023-02-14 14:44:52,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:52,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:52,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:52,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:52,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:52,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,945 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) [2023-02-14 14:44:52,947 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 [2023-02-14 14:44:52,948 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 [2023-02-14 14:44:52,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:52,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:52,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:52,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:52,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:52,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:52,977 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) [2023-02-14 14:44:52,979 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 [2023-02-14 14:44:52,981 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 [2023-02-14 14:44:52,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:52,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:52,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:52,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:52,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:52,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:52,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:53,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:53,004 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:53,004 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:53,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,006 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) [2023-02-14 14:44:53,007 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 [2023-02-14 14:44:53,009 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:53,009 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:53,009 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:53,009 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 [] [2023-02-14 14:44:53,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:53,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,051 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:53,052 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) [2023-02-14 14:44:53,071 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. [2023-02-14 14:44:53,073 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 [2023-02-14 14:44:53,073 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) [2023-02-14 14:44:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:44:53,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-14 14:44:53,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2023-02-14 14:44:53,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2023-02-14 14:44:53,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 190 transitions. [2023-02-14 14:44:53,079 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2023-02-14 14:44:53,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 107 states and 175 transitions. [2023-02-14 14:44:53,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2023-02-14 14:44:53,083 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2023-02-14 14:44:53,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 175 transitions. [2023-02-14 14:44:53,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:53,083 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 175 transitions. [2023-02-14 14:44:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 175 transitions. [2023-02-14 14:44:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2023-02-14 14:44:53,087 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) [2023-02-14 14:44:53,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 161 transitions. [2023-02-14 14:44:53,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 161 transitions. [2023-02-14 14:44:53,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:44:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:44:53,088 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) [2023-02-14 14:44:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:53,096 INFO L93 Difference]: Finished difference Result 107 states and 163 transitions. [2023-02-14 14:44:53,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 163 transitions. [2023-02-14 14:44:53,098 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2023-02-14 14:44:53,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 101 states and 153 transitions. [2023-02-14 14:44:53,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-02-14 14:44:53,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-02-14 14:44:53,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 153 transitions. [2023-02-14 14:44:53,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:53,099 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 153 transitions. [2023-02-14 14:44:53,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 153 transitions. [2023-02-14 14:44:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2023-02-14 14:44:53,102 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) [2023-02-14 14:44:53,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2023-02-14 14:44:53,102 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2023-02-14 14:44:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:44:53,103 INFO L428 stractBuchiCegarLoop]: Abstraction has 96 states and 148 transitions. [2023-02-14 14:44:53,103 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 14:44:53,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 148 transitions. [2023-02-14 14:44:53,104 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2023-02-14 14:44:53,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:53,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:53,104 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2023-02-14 14:44:53,104 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:53,106 INFO L748 eck$LassoCheckResult]: Stem: 814#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 815#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; 809#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 811#L12 assume !(10 == main_~i~0#1); 818#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 873#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 868#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 864#L12 assume !(10 == main_~i~0#1); 858#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 856#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 828#L18-1 [2023-02-14 14:44:53,106 INFO L750 eck$LassoCheckResult]: Loop: 828#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 849#L12 assume !(10 == main_~i~0#1); 829#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 827#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 828#L18-1 [2023-02-14 14:44:53,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1506873443, now seen corresponding path program 1 times [2023-02-14 14:44:53,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:53,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016526406] [2023-02-14 14:44:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:53,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:53,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016526406] [2023-02-14 14:44:53,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016526406] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:53,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:53,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:44:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124725913] [2023-02-14 14:44:53,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:53,122 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 3 times [2023-02-14 14:44:53,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:53,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695941491] [2023-02-14 14:44:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:53,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:53,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:53,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:53,140 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:53,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:53,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:53,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:53,140 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:53,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:53,140 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:53,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2023-02-14 14:44:53,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:53,140 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:53,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:53,177 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:53,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,181 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) [2023-02-14 14:44:53,185 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 [2023-02-14 14:44:53,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:53,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,209 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 [2023-02-14 14:44:53,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,210 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) [2023-02-14 14:44:53,210 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 [2023-02-14 14:44:53,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:53,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,226 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:53,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-14 14:44:53,228 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:53,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:53,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:53,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:53,229 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:53,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:53,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:53,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2023-02-14 14:44:53,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:53,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:53,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,259 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 [2023-02-14 14:44:53,260 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 [2023-02-14 14:44:53,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:53,293 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:53,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,294 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) [2023-02-14 14:44:53,297 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 [2023-02-14 14:44:53,298 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 [2023-02-14 14:44:53,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:53,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:53,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:53,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:53,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:53,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:53,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:53,324 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 [2023-02-14 14:44:53,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,325 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) [2023-02-14 14:44:53,327 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 [2023-02-14 14:44:53,329 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 [2023-02-14 14:44:53,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:53,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:53,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:53,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:53,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:53,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:53,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:53,351 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:53,353 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:53,353 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:53,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,354 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) [2023-02-14 14:44:53,356 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 [2023-02-14 14:44:53,357 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:53,357 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:53,357 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:53,357 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 [] [2023-02-14 14:44:53,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-14 14:44:53,361 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:53,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,402 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:53,403 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) [2023-02-14 14:44:53,417 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. [2023-02-14 14:44:53,418 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 [2023-02-14 14:44:53,418 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) [2023-02-14 14:44:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:44:53,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2023-02-14 14:44:53,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,419 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,461 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:53,461 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) [2023-02-14 14:44:53,478 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. [2023-02-14 14:44:53,479 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 [2023-02-14 14:44:53,483 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) [2023-02-14 14:44:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:44:53,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2023-02-14 14:44:53,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,483 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:53,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,525 INFO L141 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 [2023-02-14 14:44:53,525 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) [2023-02-14 14:44:53,541 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. [2023-02-14 14:44:53,542 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 [2023-02-14 14:44:53,543 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) [2023-02-14 14:44:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-02-14 14:44:53,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 4 letters. [2023-02-14 14:44:53,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2023-02-14 14:44:53,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2023-02-14 14:44:53,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:53,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 250 transitions. [2023-02-14 14:44:53,545 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-02-14 14:44:53,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 119 states and 180 transitions. [2023-02-14 14:44:53,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2023-02-14 14:44:53,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2023-02-14 14:44:53,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 180 transitions. [2023-02-14 14:44:53,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:53,546 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 180 transitions. [2023-02-14 14:44:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 180 transitions. [2023-02-14 14:44:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2023-02-14 14:44:53,550 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) [2023-02-14 14:44:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2023-02-14 14:44:53,550 INFO L240 hiAutomatonCegarLoop]: Abstraction has 77 states and 117 transitions. [2023-02-14 14:44:53,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:44:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:44:53,550 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) [2023-02-14 14:44:53,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:53,561 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2023-02-14 14:44:53,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 79 transitions. [2023-02-14 14:44:53,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2023-02-14 14:44:53,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 51 states and 68 transitions. [2023-02-14 14:44:53,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-02-14 14:44:53,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-02-14 14:44:53,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 68 transitions. [2023-02-14 14:44:53,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:53,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 68 transitions. [2023-02-14 14:44:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 68 transitions. [2023-02-14 14:44:53,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2023-02-14 14:44:53,565 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) [2023-02-14 14:44:53,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2023-02-14 14:44:53,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2023-02-14 14:44:53,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:44:53,566 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 65 transitions. [2023-02-14 14:44:53,566 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 14:44:53,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 65 transitions. [2023-02-14 14:44:53,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-02-14 14:44:53,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:53,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:53,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:44:53,567 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:53,568 INFO L748 eck$LassoCheckResult]: Stem: 1662#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1663#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; 1657#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1658#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1667#L12-2 assume !(0 == main_~i~0#1); 1664#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1665#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1684#L12 assume !(10 == main_~i~0#1); 1681#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1654#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1676#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1674#L12 [2023-02-14 14:44:53,568 INFO L750 eck$LassoCheckResult]: Loop: 1674#L12 assume !(10 == main_~i~0#1); 1672#L12-2 assume !(0 == main_~i~0#1); 1668#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1669#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1674#L12 [2023-02-14 14:44:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2023-02-14 14:44:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:53,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566636812] [2023-02-14 14:44:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:53,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:53,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566636812] [2023-02-14 14:44:53,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566636812] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:44:53,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054186546] [2023-02-14 14:44:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:53,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:44:53,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,604 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) [2023-02-14 14:44:53,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-02-14 14:44:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:44:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:53,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054186546] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:44:53,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:44:53,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-02-14 14:44:53,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6642128] [2023-02-14 14:44:53,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:44:53,648 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2023-02-14 14:44:53,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:53,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310724855] [2023-02-14 14:44:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:53,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:53,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:53,676 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:53,676 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:53,676 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:53,676 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:53,676 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:53,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:53,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:53,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2023-02-14 14:44:53,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:53,677 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:53,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,679 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,681 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,686 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,731 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:53,731 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:53,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,733 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) [2023-02-14 14:44:53,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:53,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,752 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 [2023-02-14 14:44:53,761 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:53,761 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: [] [2023-02-14 14:44:53,766 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 [2023-02-14 14:44:53,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,767 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) [2023-02-14 14:44:53,768 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 [2023-02-14 14:44:53,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:53,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:53,782 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: [] [2023-02-14 14:44:53,784 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 [2023-02-14 14:44:53,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,785 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) [2023-02-14 14:44:53,787 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 [2023-02-14 14:44:53,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:53,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-14 14:44:53,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,799 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) [2023-02-14 14:44:53,799 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 [2023-02-14 14:44:53,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:53,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:53,856 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:53,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:53,872 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:53,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:53,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:53,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:53,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:53,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:53,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:53,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2023-02-14 14:44:53,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:53,872 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:53,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,876 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:53,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:53,929 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:53,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,931 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) [2023-02-14 14:44:53,932 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 [2023-02-14 14:44:53,934 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 [2023-02-14 14:44:53,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:53,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:53,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:53,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:53,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:53,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:53,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:53,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-02-14 14:44:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,954 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) [2023-02-14 14:44:53,954 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 [2023-02-14 14:44:53,956 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 [2023-02-14 14:44:53,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:53,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:53,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:53,962 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:44:53,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:53,964 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:44:53,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:53,973 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:53,974 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:53,974 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:53,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:53,975 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) [2023-02-14 14:44:53,977 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 [2023-02-14 14:44:53,979 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:53,979 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:53,979 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:53,979 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 [] [2023-02-14 14:44:53,982 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 [2023-02-14 14:44:53,983 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:53,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:53,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:54,029 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:54,029 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) [2023-02-14 14:44:54,046 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. [2023-02-14 14:44:54,047 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 [2023-02-14 14:44:54,047 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) [2023-02-14 14:44:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 14:44:54,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2023-02-14 14:44:54,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,048 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:54,083 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:54,083 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) [2023-02-14 14:44:54,099 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. [2023-02-14 14:44:54,099 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 [2023-02-14 14:44:54,099 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) [2023-02-14 14:44:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 14:44:54,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2023-02-14 14:44:54,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,100 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:54,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:54,135 INFO L141 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 [2023-02-14 14:44:54,135 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) [2023-02-14 14:44:54,154 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. [2023-02-14 14:44:54,155 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 [2023-02-14 14:44:54,155 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) [2023-02-14 14:44:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:44:54,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2023-02-14 14:44:54,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2023-02-14 14:44:54,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2023-02-14 14:44:54,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 124 transitions. [2023-02-14 14:44:54,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2023-02-14 14:44:54,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 56 states and 76 transitions. [2023-02-14 14:44:54,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-14 14:44:54,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-02-14 14:44:54,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 76 transitions. [2023-02-14 14:44:54,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:54,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2023-02-14 14:44:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 76 transitions. [2023-02-14 14:44:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2023-02-14 14:44:54,171 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) [2023-02-14 14:44:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2023-02-14 14:44:54,172 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 57 transitions. [2023-02-14 14:44:54,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:54,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:44:54,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:44:54,173 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) [2023-02-14 14:44:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:54,195 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2023-02-14 14:44:54,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2023-02-14 14:44:54,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2023-02-14 14:44:54,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 72 states and 93 transitions. [2023-02-14 14:44:54,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-02-14 14:44:54,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-02-14 14:44:54,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 93 transitions. [2023-02-14 14:44:54,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:54,196 INFO L218 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2023-02-14 14:44:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 93 transitions. [2023-02-14 14:44:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2023-02-14 14:44:54,198 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) [2023-02-14 14:44:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2023-02-14 14:44:54,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2023-02-14 14:44:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:44:54,199 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2023-02-14 14:44:54,199 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-14 14:44:54,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2023-02-14 14:44:54,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-02-14 14:44:54,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:54,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:54,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:44:54,199 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:54,199 INFO L748 eck$LassoCheckResult]: Stem: 2288#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2289#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; 2293#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2298#L12 assume !(10 == main_~i~0#1); 2280#L12-2 assume !(0 == main_~i~0#1); 2281#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2312#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2294#L12 assume !(10 == main_~i~0#1); 2282#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2283#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2322#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2310#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2309#L12-2 [2023-02-14 14:44:54,199 INFO L750 eck$LassoCheckResult]: Loop: 2309#L12-2 assume !(0 == main_~i~0#1); 2345#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2344#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2308#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2309#L12-2 [2023-02-14 14:44:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2023-02-14 14:44:54,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:54,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516655250] [2023-02-14 14:44:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:54,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-14 14:44:54,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:54,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516655250] [2023-02-14 14:44:54,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516655250] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:54,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:54,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:44:54,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973157603] [2023-02-14 14:44:54,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:54,225 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:54,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2023-02-14 14:44:54,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:54,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093118580] [2023-02-14 14:44:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:54,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:54,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:54,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:54,252 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:54,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:54,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:54,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:54,252 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:54,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:54,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:54,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2023-02-14 14:44:54,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:54,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:54,253 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,257 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:54,291 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:54,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,292 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) [2023-02-14 14:44:54,297 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 [2023-02-14 14:44:54,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:54,325 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: [] [2023-02-14 14:44:54,331 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 [2023-02-14 14:44:54,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,332 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) [2023-02-14 14:44:54,334 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 [2023-02-14 14:44:54,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:54,350 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: [] [2023-02-14 14:44:54,353 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 [2023-02-14 14:44:54,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,354 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) [2023-02-14 14:44:54,355 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 [2023-02-14 14:44:54,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,385 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:54,385 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: [] [2023-02-14 14:44:54,390 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 [2023-02-14 14:44:54,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,391 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) [2023-02-14 14:44:54,392 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 [2023-02-14 14:44:54,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,413 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 [2023-02-14 14:44:54,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,414 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) [2023-02-14 14:44:54,414 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 [2023-02-14 14:44:54,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:54,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,482 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:54,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-02-14 14:44:54,486 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:54,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:54,486 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:54,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:54,486 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:54,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:54,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:54,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2023-02-14 14:44:54,486 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:54,486 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:54,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,531 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:54,531 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:54,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,532 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) [2023-02-14 14:44:54,533 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 [2023-02-14 14:44:54,535 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 [2023-02-14 14:44:54,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:54,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:54,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:54,541 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:44:54,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:54,545 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:44:54,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:54,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:54,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-02-14 14:44:54,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,563 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) [2023-02-14 14:44:54,570 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 [2023-02-14 14:44:54,572 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 [2023-02-14 14:44:54,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:54,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:54,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:54,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:54,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:54,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:54,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:54,600 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 [2023-02-14 14:44:54,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,602 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) [2023-02-14 14:44:54,602 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 [2023-02-14 14:44:54,605 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 [2023-02-14 14:44:54,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:54,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:54,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:54,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:54,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:54,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:54,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:54,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-02-14 14:44:54,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,623 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) [2023-02-14 14:44:54,631 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 [2023-02-14 14:44:54,632 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 [2023-02-14 14:44:54,633 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 [2023-02-14 14:44:54,634 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 [2023-02-14 14:44:54,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:54,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:54,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:54,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:54,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:54,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:54,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:54,655 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:54,657 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:44:54,657 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:54,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,658 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) [2023-02-14 14:44:54,658 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 [2023-02-14 14:44:54,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:54,661 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:54,661 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:54,661 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 [] [2023-02-14 14:44:54,667 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 [2023-02-14 14:44:54,668 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:54,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:54,701 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:54,701 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) [2023-02-14 14:44:54,717 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. [2023-02-14 14:44:54,717 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 [2023-02-14 14:44:54,718 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) [2023-02-14 14:44:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:44:54,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2023-02-14 14:44:54,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2023-02-14 14:44:54,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2023-02-14 14:44:54,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:54,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2023-02-14 14:44:54,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-02-14 14:44:54,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 161 transitions. [2023-02-14 14:44:54,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-02-14 14:44:54,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-02-14 14:44:54,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2023-02-14 14:44:54,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:54,721 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2023-02-14 14:44:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2023-02-14 14:44:54,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2023-02-14 14:44:54,723 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) [2023-02-14 14:44:54,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2023-02-14 14:44:54,723 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120 states and 155 transitions. [2023-02-14 14:44:54,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:44:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:44:54,724 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) [2023-02-14 14:44:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:54,737 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2023-02-14 14:44:54,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 174 transitions. [2023-02-14 14:44:54,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2023-02-14 14:44:54,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 174 transitions. [2023-02-14 14:44:54,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-02-14 14:44:54,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-02-14 14:44:54,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 174 transitions. [2023-02-14 14:44:54,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:54,739 INFO L218 hiAutomatonCegarLoop]: Abstraction has 138 states and 174 transitions. [2023-02-14 14:44:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 174 transitions. [2023-02-14 14:44:54,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2023-02-14 14:44:54,741 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) [2023-02-14 14:44:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2023-02-14 14:44:54,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 147 transitions. [2023-02-14 14:44:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:44:54,743 INFO L428 stractBuchiCegarLoop]: Abstraction has 117 states and 147 transitions. [2023-02-14 14:44:54,743 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-14 14:44:54,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 147 transitions. [2023-02-14 14:44:54,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-02-14 14:44:54,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:54,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:54,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2023-02-14 14:44:54,745 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-14 14:44:54,745 INFO L748 eck$LassoCheckResult]: Stem: 2843#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2844#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; 2848#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2856#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2835#L12-2 assume !(0 == main_~i~0#1); 2836#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2950#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2851#L12 assume !(10 == main_~i~0#1); 2837#L12-2 assume !(0 == main_~i~0#1); 2838#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2847#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2949#L12 assume !(10 == main_~i~0#1); 2948#L12-2 assume !(0 == main_~i~0#1); 2947#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2945#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2944#L12 assume !(10 == main_~i~0#1); 2943#L12-2 assume !(0 == main_~i~0#1); 2941#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2942#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2946#L12 assume !(10 == main_~i~0#1); 2850#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2910#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2907#L12 assume !(10 == main_~i~0#1); 2885#L12-2 assume !(0 == main_~i~0#1); 2887#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2886#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2884#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2858#L12-2 [2023-02-14 14:44:54,745 INFO L750 eck$LassoCheckResult]: Loop: 2858#L12-2 assume !(0 == main_~i~0#1); 2853#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2854#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2882#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2858#L12-2 [2023-02-14 14:44:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2023-02-14 14:44:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:54,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266930422] [2023-02-14 14:44:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-14 14:44:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:54,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266930422] [2023-02-14 14:44:54,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266930422] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:44:54,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356932424] [2023-02-14 14:44:54,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 14:44:54,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:44:54,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,799 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) [2023-02-14 14:44:54,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-02-14 14:44:54,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-14 14:44:54,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:44:54,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:54,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 14:44:54,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:44:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 14:44:54,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356932424] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:44:54,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:44:54,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2023-02-14 14:44:54,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488554851] [2023-02-14 14:44:54,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:44:54,868 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:54,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:54,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2023-02-14 14:44:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:54,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131045688] [2023-02-14 14:44:54,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:54,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:54,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:54,892 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:54,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:54,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:54,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:54,893 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:54,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,893 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:54,893 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:54,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2023-02-14 14:44:54,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:54,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:54,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,896 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:54,940 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:54,940 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:54,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,942 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:54,944 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 [2023-02-14 14:44:54,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,971 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:54,972 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: [] [2023-02-14 14:44:54,977 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 [2023-02-14 14:44:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,979 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) [2023-02-14 14:44:54,980 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 [2023-02-14 14:44:54,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:54,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:54,991 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 [2023-02-14 14:44:54,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:54,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:54,992 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) [2023-02-14 14:44:54,992 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 [2023-02-14 14:44:54,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:54,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:55,068 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:55,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2023-02-14 14:44:55,072 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:55,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:55,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:55,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:55,072 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:55,072 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:55,072 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:55,072 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:55,072 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2023-02-14 14:44:55,072 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:55,072 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:55,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:55,075 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:55,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:55,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:55,115 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:55,115 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:55,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:55,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:55,116 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) [2023-02-14 14:44:55,118 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 [2023-02-14 14:44:55,119 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 [2023-02-14 14:44:55,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:55,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:55,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:55,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:55,127 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:55,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:55,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:55,132 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 [2023-02-14 14:44:55,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:55,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:55,133 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) [2023-02-14 14:44:55,133 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 [2023-02-14 14:44:55,135 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 [2023-02-14 14:44:55,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:55,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:55,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:55,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:55,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:55,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:55,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:55,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:55,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:55,145 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:44:55,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:55,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:55,146 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) [2023-02-14 14:44:55,147 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 [2023-02-14 14:44:55,150 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:55,150 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:55,150 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:55,150 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 [] [2023-02-14 14:44:55,153 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 [2023-02-14 14:44:55,153 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:55,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:55,213 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:55,213 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) [2023-02-14 14:44:55,239 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. [2023-02-14 14:44:55,239 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 [2023-02-14 14:44:55,240 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) [2023-02-14 14:44:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:44:55,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2023-02-14 14:44:55,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:55,240 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:55,297 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:44:55,297 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) [2023-02-14 14:44:55,320 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. [2023-02-14 14:44:55,320 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 [2023-02-14 14:44:55,320 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) [2023-02-14 14:44:55,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-14 14:44:55,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2023-02-14 14:44:55,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:55,321 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:55,375 INFO L141 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 [2023-02-14 14:44:55,375 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) [2023-02-14 14:44:55,398 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. [2023-02-14 14:44:55,398 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 [2023-02-14 14:44:55,398 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) [2023-02-14 14:44:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:44:55,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2023-02-14 14:44:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:55,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2023-02-14 14:44:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:55,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2023-02-14 14:44:55,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:55,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 219 transitions. [2023-02-14 14:44:55,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2023-02-14 14:44:55,400 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 121 states and 151 transitions. [2023-02-14 14:44:55,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-14 14:44:55,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-14 14:44:55,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 151 transitions. [2023-02-14 14:44:55,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:55,401 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 151 transitions. [2023-02-14 14:44:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 151 transitions. [2023-02-14 14:44:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2023-02-14 14:44:55,402 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) [2023-02-14 14:44:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2023-02-14 14:44:55,402 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2023-02-14 14:44:55,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-14 14:44:55,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-02-14 14:44:55,402 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) [2023-02-14 14:44:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:55,457 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2023-02-14 14:44:55,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2023-02-14 14:44:55,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2023-02-14 14:44:55,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 153 states and 188 transitions. [2023-02-14 14:44:55,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-14 14:44:55,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-14 14:44:55,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 188 transitions. [2023-02-14 14:44:55,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:55,458 INFO L218 hiAutomatonCegarLoop]: Abstraction has 153 states and 188 transitions. [2023-02-14 14:44:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 188 transitions. [2023-02-14 14:44:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 104. [2023-02-14 14:44:55,460 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) [2023-02-14 14:44:55,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2023-02-14 14:44:55,460 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 126 transitions. [2023-02-14 14:44:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-14 14:44:55,465 INFO L428 stractBuchiCegarLoop]: Abstraction has 104 states and 126 transitions. [2023-02-14 14:44:55,465 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-14 14:44:55,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 126 transitions. [2023-02-14 14:44:55,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2023-02-14 14:44:55,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:55,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:55,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-02-14 14:44:55,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2023-02-14 14:44:55,467 INFO L748 eck$LassoCheckResult]: Stem: 4231#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4232#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; 4226#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4228#L12 assume !(10 == main_~i~0#1); 4251#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4249#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4241#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 [2023-02-14 14:44:55,467 INFO L750 eck$LassoCheckResult]: Loop: 4242#L12 assume !(10 == main_~i~0#1); 4270#L12-2 assume !(0 == main_~i~0#1); 4269#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4268#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4267#L12 assume !(10 == main_~i~0#1); 4266#L12-2 assume !(0 == main_~i~0#1); 4265#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4264#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4263#L12 assume !(10 == main_~i~0#1); 4262#L12-2 assume !(0 == main_~i~0#1); 4261#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4260#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4259#L12 assume !(10 == main_~i~0#1); 4258#L12-2 assume !(0 == main_~i~0#1); 4257#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4256#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4255#L12 assume !(10 == main_~i~0#1); 4245#L12-2 assume !(0 == main_~i~0#1); 4248#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4247#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4244#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4246#L12-2 assume !(0 == main_~i~0#1); 4310#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4309#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4308#L12 assume !(10 == main_~i~0#1); 4307#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; 4305#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4304#L12 assume !(10 == main_~i~0#1); 4303#L12-2 assume !(0 == main_~i~0#1); 4302#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4301#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4300#L12 assume !(10 == main_~i~0#1); 4299#L12-2 assume !(0 == main_~i~0#1); 4298#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4297#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4295#L12 assume !(10 == main_~i~0#1); 4294#L12-2 assume !(0 == main_~i~0#1); 4292#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4293#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4228#L12 assume !(10 == main_~i~0#1); 4251#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4249#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4241#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 [2023-02-14 14:44:55,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 2 times [2023-02-14 14:44:55,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:55,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796742165] [2023-02-14 14:44:55,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:55,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1466490324, now seen corresponding path program 1 times [2023-02-14 14:44:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:55,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340513445] [2023-02-14 14:44:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-14 14:44:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:55,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340513445] [2023-02-14 14:44:55,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340513445] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:44:55,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607202813] [2023-02-14 14:44:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:44:55,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:55,569 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) [2023-02-14 14:44:55,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-02-14 14:44:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-14 14:44:55,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:44:55,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-02-14 14:44:55,697 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 [2023-02-14 14:44:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-14 14:44:55,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607202813] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:44:55,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:44:55,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2023-02-14 14:44:55,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167956667] [2023-02-14 14:44:55,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:44:55,706 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-14 14:44:55,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:44:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:44:55,707 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) [2023-02-14 14:44:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:55,753 INFO L93 Difference]: Finished difference Result 198 states and 243 transitions. [2023-02-14 14:44:55,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 243 transitions. [2023-02-14 14:44:55,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2023-02-14 14:44:55,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 173 states and 213 transitions. [2023-02-14 14:44:55,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-02-14 14:44:55,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-14 14:44:55,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 213 transitions. [2023-02-14 14:44:55,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:55,754 INFO L218 hiAutomatonCegarLoop]: Abstraction has 173 states and 213 transitions. [2023-02-14 14:44:55,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 213 transitions. [2023-02-14 14:44:55,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2023-02-14 14:44:55,756 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) [2023-02-14 14:44:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2023-02-14 14:44:55,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 164 states and 201 transitions. [2023-02-14 14:44:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:44:55,757 INFO L428 stractBuchiCegarLoop]: Abstraction has 164 states and 201 transitions. [2023-02-14 14:44:55,757 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-02-14 14:44:55,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 201 transitions. [2023-02-14 14:44:55,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2023-02-14 14:44:55,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:55,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:55,758 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-02-14 14:44:55,758 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2023-02-14 14:44:55,758 INFO L748 eck$LassoCheckResult]: Stem: 4806#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4807#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; 4801#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4803#L12 assume !(10 == main_~i~0#1); 4845#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4844#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4815#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4816#L12 [2023-02-14 14:44:55,758 INFO L750 eck$LassoCheckResult]: Loop: 4816#L12 assume !(10 == main_~i~0#1); 4837#L12-2 assume !(0 == main_~i~0#1); 4836#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4835#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4834#L12 assume !(10 == main_~i~0#1); 4833#L12-2 assume !(0 == main_~i~0#1); 4832#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4831#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4830#L12 assume !(10 == main_~i~0#1); 4829#L12-2 assume !(0 == main_~i~0#1); 4828#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4827#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4826#L12 assume !(10 == main_~i~0#1); 4825#L12-2 assume !(0 == main_~i~0#1); 4824#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4823#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4822#L12 assume !(10 == main_~i~0#1); 4819#L12-2 assume !(0 == main_~i~0#1); 4821#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4820#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4818#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4798#L12-2 assume !(0 == main_~i~0#1); 4799#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4804#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4805#L12 assume !(10 == main_~i~0#1); 4812#L12-2 assume !(0 == main_~i~0#1); 4961#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4960#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4959#L12 assume !(10 == main_~i~0#1); 4958#L12-2 assume !(0 == main_~i~0#1); 4957#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4956#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4955#L12 assume !(10 == main_~i~0#1); 4954#L12-2 assume !(0 == main_~i~0#1); 4953#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4952#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4951#L12 assume !(10 == main_~i~0#1); 4950#L12-2 assume !(0 == main_~i~0#1); 4949#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4948#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4947#L12 assume !(10 == main_~i~0#1); 4946#L12-2 assume !(0 == main_~i~0#1); 4945#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4944#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4943#L12 assume !(10 == main_~i~0#1); 4942#L12-2 assume !(0 == main_~i~0#1); 4941#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4939#L12 assume !(10 == main_~i~0#1); 4938#L12-2 assume !(0 == main_~i~0#1); 4937#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4936#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4935#L12 assume !(10 == main_~i~0#1); 4934#L12-2 assume !(0 == main_~i~0#1); 4933#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4932#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4852#L12 assume !(10 == main_~i~0#1); 4931#L12-2 assume !(0 == main_~i~0#1); 4896#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4851#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4803#L12 assume !(10 == main_~i~0#1); 4845#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4844#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4815#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4816#L12 [2023-02-14 14:44:55,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 3 times [2023-02-14 14:44:55,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:55,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473761134] [2023-02-14 14:44:55,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:55,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,762 INFO L85 PathProgramCache]: Analyzing trace with hash 726843037, now seen corresponding path program 2 times [2023-02-14 14:44:55,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:55,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105157274] [2023-02-14 14:44:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:55,775 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:55,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1110135673, now seen corresponding path program 4 times [2023-02-14 14:44:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:55,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34111681] [2023-02-14 14:44:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:55,860 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-02-14 14:44:55,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:55,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34111681] [2023-02-14 14:44:55,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34111681] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:44:55,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680067928] [2023-02-14 14:44:55,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 14:44:55,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:44:55,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:55,862 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) [2023-02-14 14:44:55,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-02-14 14:44:55,893 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 14:44:55,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:44:55,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-14 14:44:55,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-02-14 14:44:55,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:44:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-02-14 14:44:55,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680067928] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:44:55,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:44:55,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2023-02-14 14:44:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187245503] [2023-02-14 14:44:55,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:44:56,240 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:56,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:56,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:56,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:56,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:56,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:56,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:56,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2023-02-14 14:44:56,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:56,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:56,242 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,248 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,252 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,282 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:56,282 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,283 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) [2023-02-14 14:44:56,284 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 [2023-02-14 14:44:56,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:56,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:56,292 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:56,292 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: [] [2023-02-14 14:44:56,295 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 [2023-02-14 14:44:56,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,296 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) [2023-02-14 14:44:56,297 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 [2023-02-14 14:44:56,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:56,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:56,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:56,309 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: [] [2023-02-14 14:44:56,311 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 [2023-02-14 14:44:56,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,313 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) [2023-02-14 14:44:56,313 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 [2023-02-14 14:44:56,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:56,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:56,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2023-02-14 14:44:56,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,329 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) [2023-02-14 14:44:56,330 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 [2023-02-14 14:44:56,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:56,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:56,339 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:56,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-02-14 14:44:56,342 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:56,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:56,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:56,342 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:56,342 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:56,342 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,342 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:56,342 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:56,342 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2023-02-14 14:44:56,342 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:56,342 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:56,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,346 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,347 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:56,392 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:56,392 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:56,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,393 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) [2023-02-14 14:44:56,394 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 [2023-02-14 14:44:56,396 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 [2023-02-14 14:44:56,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:56,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:56,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:56,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:56,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:56,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:56,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:56,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:56,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2023-02-14 14:44:56,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,422 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) [2023-02-14 14:44:56,424 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 [2023-02-14 14:44:56,425 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 [2023-02-14 14:44:56,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:56,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:56,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:56,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:56,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:56,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:56,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:56,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-02-14 14:44:56,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,451 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) [2023-02-14 14:44:56,452 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 [2023-02-14 14:44:56,453 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 [2023-02-14 14:44:56,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:56,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:56,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:56,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:56,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:56,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:56,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:56,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:56,462 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:44:56,463 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:56,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:56,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:56,464 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) [2023-02-14 14:44:56,464 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 [2023-02-14 14:44:56,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:56,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:56,466 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:56,466 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 [] [2023-02-14 14:44:56,468 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 [2023-02-14 14:44:56,469 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:56,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:56,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:56,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 14:44:56,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:56,530 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 [2023-02-14 14:44:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-14 14:44:56,636 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2023-02-14 14:44:56,636 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) [2023-02-14 14:44:56,707 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. [2023-02-14 14:44:56,708 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 [2023-02-14 14:44:56,708 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) [2023-02-14 14:44:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2023-02-14 14:44:56,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 7 letters. Loop has 64 letters. [2023-02-14 14:44:56,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:56,708 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:56,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:56,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:56,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:56,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 14:44:56,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-14 14:44:56,838 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2023-02-14 14:44:56,838 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) [2023-02-14 14:44:57,027 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. [2023-02-14 14:44:57,034 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 [2023-02-14 14:44:57,035 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) [2023-02-14 14:44:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2023-02-14 14:44:57,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 67 transitions. Stem has 7 letters. Loop has 64 letters. [2023-02-14 14:44:57,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:57,035 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:57,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:57,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:57,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 14:44:57,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-14 14:44:57,164 INFO L141 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 [2023-02-14 14:44:57,164 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) [2023-02-14 14:44:57,336 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. [2023-02-14 14:44:57,336 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 [2023-02-14 14:44:57,336 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) [2023-02-14 14:44:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 76 transitions. [2023-02-14 14:44:57,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 76 transitions. Stem has 7 letters. Loop has 64 letters. [2023-02-14 14:44:57,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:57,338 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:44:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:57,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:57,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:57,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 14:44:57,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-02-14 14:44:57,472 INFO L141 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 [2023-02-14 14:44:57,472 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) [2023-02-14 14:44:57,642 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. [2023-02-14 14:44:57,642 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 [2023-02-14 14:44:57,642 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) [2023-02-14 14:44:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 78 transitions. [2023-02-14 14:44:57,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 64 letters. [2023-02-14 14:44:57,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:57,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 71 letters. Loop has 64 letters. [2023-02-14 14:44:57,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:57,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 128 letters. [2023-02-14 14:44:57,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:57,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1639 states and 1887 transitions. [2023-02-14 14:44:57,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 307 [2023-02-14 14:44:57,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1639 states to 522 states and 614 transitions. [2023-02-14 14:44:57,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-14 14:44:57,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2023-02-14 14:44:57,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 614 transitions. [2023-02-14 14:44:57,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:57,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 522 states and 614 transitions. [2023-02-14 14:44:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 614 transitions. [2023-02-14 14:44:57,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 163. [2023-02-14 14:44:57,656 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) [2023-02-14 14:44:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2023-02-14 14:44:57,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 163 states and 197 transitions. [2023-02-14 14:44:57,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:44:57,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:44:57,656 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) [2023-02-14 14:44:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:57,695 INFO L93 Difference]: Finished difference Result 398 states and 454 transitions. [2023-02-14 14:44:57,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 454 transitions. [2023-02-14 14:44:57,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 195 [2023-02-14 14:44:57,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 298 states and 353 transitions. [2023-02-14 14:44:57,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2023-02-14 14:44:57,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2023-02-14 14:44:57,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 353 transitions. [2023-02-14 14:44:57,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:57,698 INFO L218 hiAutomatonCegarLoop]: Abstraction has 298 states and 353 transitions. [2023-02-14 14:44:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 353 transitions. [2023-02-14 14:44:57,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 152. [2023-02-14 14:44:57,700 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) [2023-02-14 14:44:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2023-02-14 14:44:57,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 183 transitions. [2023-02-14 14:44:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:44:57,700 INFO L428 stractBuchiCegarLoop]: Abstraction has 152 states and 183 transitions. [2023-02-14 14:44:57,701 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-02-14 14:44:57,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 183 transitions. [2023-02-14 14:44:57,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 88 [2023-02-14 14:44:57,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:57,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:57,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-02-14 14:44:57,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [21, 20, 19, 11, 10, 2, 1] [2023-02-14 14:44:57,702 INFO L748 eck$LassoCheckResult]: Stem: 11576#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 11577#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11581#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11591#L12 assume !(10 == main_~i~0#1); 11594#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11592#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11585#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11586#L12 [2023-02-14 14:44:57,702 INFO L750 eck$LassoCheckResult]: Loop: 11586#L12 assume !(10 == main_~i~0#1); 11674#L12-2 assume !(0 == main_~i~0#1); 11673#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11672#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11671#L12 assume !(10 == main_~i~0#1); 11670#L12-2 assume !(0 == main_~i~0#1); 11669#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11668#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11667#L12 assume !(10 == main_~i~0#1); 11666#L12-2 assume !(0 == main_~i~0#1); 11665#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11664#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11663#L12 assume !(10 == main_~i~0#1); 11660#L12-2 assume !(0 == main_~i~0#1); 11662#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11661#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11659#L12 assume !(10 == main_~i~0#1); 11568#L12-2 assume !(0 == main_~i~0#1); 11569#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11572#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11573#L12 assume !(10 == main_~i~0#1); 11658#L12-2 assume !(0 == main_~i~0#1); 11657#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11656#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11655#L12 assume !(10 == main_~i~0#1); 11654#L12-2 assume !(0 == main_~i~0#1); 11653#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11652#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11651#L12 assume !(10 == main_~i~0#1); 11650#L12-2 assume !(0 == main_~i~0#1); 11649#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11648#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11647#L12 assume !(10 == main_~i~0#1); 11646#L12-2 assume !(0 == main_~i~0#1); 11645#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11644#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11643#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11642#L12-2 assume !(0 == main_~i~0#1); 11641#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11640#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11639#L12 assume !(10 == main_~i~0#1); 11638#L12-2 assume !(0 == main_~i~0#1); 11637#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11636#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11635#L12 assume !(10 == main_~i~0#1); 11634#L12-2 assume !(0 == main_~i~0#1); 11633#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11632#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11631#L12 assume !(10 == main_~i~0#1); 11630#L12-2 assume !(0 == main_~i~0#1); 11629#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11628#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11627#L12 assume !(10 == main_~i~0#1); 11626#L12-2 assume !(0 == main_~i~0#1); 11625#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11624#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11623#L12 assume !(10 == main_~i~0#1); 11622#L12-2 assume !(0 == main_~i~0#1); 11621#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11620#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11619#L12 assume !(10 == main_~i~0#1); 11618#L12-2 assume !(0 == main_~i~0#1); 11617#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11616#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11615#L12 assume !(10 == main_~i~0#1); 11614#L12-2 assume !(0 == main_~i~0#1); 11613#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11612#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11611#L12 assume !(10 == main_~i~0#1); 11610#L12-2 assume !(0 == main_~i~0#1); 11609#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11608#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11604#L12 assume !(10 == main_~i~0#1); 11606#L12-2 assume !(0 == main_~i~0#1); 11605#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11603#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11602#L12 assume !(10 == main_~i~0#1); 11600#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11601#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11677#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11587#L12 assume !(10 == main_~i~0#1); 11597#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11592#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11585#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11586#L12 [2023-02-14 14:44:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 4 times [2023-02-14 14:44:57,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:57,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236780205] [2023-02-14 14:44:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:57,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1840948782, now seen corresponding path program 3 times [2023-02-14 14:44:57,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:57,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827985535] [2023-02-14 14:44:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-02-14 14:44:57,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:57,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827985535] [2023-02-14 14:44:57,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827985535] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:57,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:57,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:44:57,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591873250] [2023-02-14 14:44:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:57,740 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-14 14:44:57,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:44:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:44:57,740 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) [2023-02-14 14:44:57,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:57,751 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2023-02-14 14:44:57,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 181 transitions. [2023-02-14 14:44:57,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2023-02-14 14:44:57,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 144 states and 170 transitions. [2023-02-14 14:44:57,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2023-02-14 14:44:57,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2023-02-14 14:44:57,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 170 transitions. [2023-02-14 14:44:57,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:44:57,752 INFO L218 hiAutomatonCegarLoop]: Abstraction has 144 states and 170 transitions. [2023-02-14 14:44:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 170 transitions. [2023-02-14 14:44:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2023-02-14 14:44:57,753 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) [2023-02-14 14:44:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2023-02-14 14:44:57,754 INFO L240 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2023-02-14 14:44:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:44:57,754 INFO L428 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2023-02-14 14:44:57,754 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-02-14 14:44:57,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2023-02-14 14:44:57,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2023-02-14 14:44:57,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:57,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:57,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 1, 1, 1] [2023-02-14 14:44:57,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2023-02-14 14:44:57,755 INFO L748 eck$LassoCheckResult]: Stem: 11886#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 11887#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11890#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11899#L12 assume !(10 == main_~i~0#1); 11900#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11901#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11882#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11883#L12 assume !(10 == main_~i~0#1); 11935#L12-2 assume !(0 == main_~i~0#1); 11934#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11933#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11932#L12 assume !(10 == main_~i~0#1); 11931#L12-2 assume !(0 == main_~i~0#1); 11930#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11929#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11928#L12 assume !(10 == main_~i~0#1); 11927#L12-2 assume !(0 == main_~i~0#1); 11926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11925#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11924#L12 assume !(10 == main_~i~0#1); 11920#L12-2 assume !(0 == main_~i~0#1); 11923#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11922#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11919#L12 assume !(10 == main_~i~0#1); 11902#L12-2 [2023-02-14 14:44:57,755 INFO L750 eck$LassoCheckResult]: Loop: 11902#L12-2 assume !(0 == main_~i~0#1); 11895#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11896#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11921#L12 assume !(10 == main_~i~0#1); 11918#L12-2 assume !(0 == main_~i~0#1); 11917#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11916#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11915#L12 assume !(10 == main_~i~0#1); 11914#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; 11912#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11911#L12 assume !(10 == main_~i~0#1); 11910#L12-2 assume !(0 == main_~i~0#1); 11909#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11907#L12 assume !(10 == main_~i~0#1); 11906#L12-2 assume !(0 == main_~i~0#1); 11905#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11904#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11903#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11879#L12-2 assume !(0 == main_~i~0#1); 11880#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11884#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11885#L12 assume !(10 == main_~i~0#1); 11977#L12-2 assume !(0 == main_~i~0#1); 11976#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11975#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11974#L12 assume !(10 == main_~i~0#1); 11973#L12-2 assume !(0 == main_~i~0#1); 11972#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11971#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11970#L12 assume !(10 == main_~i~0#1); 11969#L12-2 assume !(0 == main_~i~0#1); 11968#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11967#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11966#L12 assume !(10 == main_~i~0#1); 11965#L12-2 assume !(0 == main_~i~0#1); 11964#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11963#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11962#L12 assume !(10 == main_~i~0#1); 11961#L12-2 assume !(0 == main_~i~0#1); 11960#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11959#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11958#L12 assume !(10 == main_~i~0#1); 11957#L12-2 assume !(0 == main_~i~0#1); 11956#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11955#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 := main_~i~0#1 - 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 := main_~i~0#1 - 1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11944#L12 assume !(10 == main_~i~0#1); 11946#L12-2 assume !(0 == main_~i~0#1); 11945#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11892#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11938#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11936#L12 assume !(10 == main_~i~0#1); 11935#L12-2 assume !(0 == main_~i~0#1); 11934#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11933#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11932#L12 assume !(10 == main_~i~0#1); 11931#L12-2 assume !(0 == main_~i~0#1); 11930#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11929#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11928#L12 assume !(10 == main_~i~0#1); 11927#L12-2 assume !(0 == main_~i~0#1); 11926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11925#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11924#L12 assume !(10 == main_~i~0#1); 11920#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); 11919#L12 assume !(10 == main_~i~0#1); 11902#L12-2 [2023-02-14 14:44:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash 781927031, now seen corresponding path program 1 times [2023-02-14 14:44:57,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:57,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066375651] [2023-02-14 14:44:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:57,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:57,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,761 INFO L85 PathProgramCache]: Analyzing trace with hash 921517193, now seen corresponding path program 4 times [2023-02-14 14:44:57,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:57,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179945858] [2023-02-14 14:44:57,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:57,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:57,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash 933372671, now seen corresponding path program 5 times [2023-02-14 14:44:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:57,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102959670] [2023-02-14 14:44:57,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:57,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:58,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:58,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:44:58 BoogieIcfgContainer [2023-02-14 14:44:58,300 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:44:58,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:44:58,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:44:58,301 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:44:58,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:50" (3/4) ... [2023-02-14 14:44:58,303 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-02-14 14:44:58,339 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 14:44:58,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:44:58,339 INFO L158 Benchmark]: Toolchain (without parser) took 8173.26ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 110.8MB in the beginning and 126.9MB in the end (delta: -16.1MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,339 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 155.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:44:58,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.06ms. Allocated memory is still 155.2MB. Free memory was 110.8MB in the beginning and 101.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.35ms. Allocated memory is still 155.2MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,340 INFO L158 Benchmark]: Boogie Preprocessor took 10.15ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 833.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:44:58,340 INFO L158 Benchmark]: RCFGBuilder took 137.79ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 90.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,340 INFO L158 Benchmark]: BuchiAutomizer took 7850.35ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 90.3MB in the beginning and 131.1MB in the end (delta: -40.8MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,340 INFO L158 Benchmark]: Witness Printer took 38.08ms. Allocated memory is still 197.1MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 14:44:58,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 155.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 117.06ms. Allocated memory is still 155.2MB. Free memory was 110.8MB in the beginning and 101.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.35ms. Allocated memory is still 155.2MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.15ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 833.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 137.79ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 90.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7850.35ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 90.3MB in the beginning and 131.1MB in the end (delta: -40.8MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 38.08ms. Allocated memory is still 197.1MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 18 terminating modules (9 trivial, 5 deterministic, 4 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 16 locations. 9 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 101 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 12 iterations. TraceHistogramMax:21. Analysis of lassos took 5.1s. Construction of modules took 0.4s. Büchi inclusion checks took 2.0s. 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, 483 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 465 mSDsluCounter, 237 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 923 IncrementalHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 204 mSDtfsCounter, 923 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax174 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf91 smp95 dnf122 smp94 tf109 neg96 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i == 10) VAL [i=0, up=0] [L15] COND TRUE i == 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i == 10) VAL [i=1, up=1] [L15] COND FALSE !(i == 0) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=2, up=1] [L12] COND FALSE !(i == 10) VAL [i=2, up=1] [L15] COND FALSE !(i == 0) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=3, up=1] [L12] COND FALSE !(i == 10) VAL [i=3, up=1] [L15] COND FALSE !(i == 0) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=4, up=1] [L12] COND FALSE !(i == 10) VAL [i=4, up=1] [L15] COND FALSE !(i == 0) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=5, up=1] [L12] COND FALSE !(i == 10) VAL [i=5, up=1] 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. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 15]: 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 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i == 10) VAL [i=0, up=0] [L15] COND TRUE i == 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i == 10) VAL [i=1, up=1] [L15] COND FALSE !(i == 0) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=2, up=1] [L12] COND FALSE !(i == 10) VAL [i=2, up=1] [L15] COND FALSE !(i == 0) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=3, up=1] [L12] COND FALSE !(i == 10) VAL [i=3, up=1] [L15] COND FALSE !(i == 0) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=4, up=1] [L12] COND FALSE !(i == 10) VAL [i=4, up=1] [L15] COND FALSE !(i == 0) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=5, up=1] [L12] COND FALSE !(i == 10) VAL [i=5, up=1] 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! [2023-02-14 14:44:58,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:58,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-02-14 14:44:58,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-02-14 14:44:58,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-02-14 14:44:59,173 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)