./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.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 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:07:07,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:07:07,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:07:07,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:07:07,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:07:07,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:07:07,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:07:07,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:07:07,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:07:07,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:07:07,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:07:07,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:07:07,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:07:07,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:07:07,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:07:07,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:07:07,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:07:07,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:07:07,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:07:07,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:07:07,261 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:07:07,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:07:07,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:07:07,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:07:07,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:07:07,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:07:07,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:07:07,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:07:07,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:07:07,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:07:07,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:07:07,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:07:07,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:07:07,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:07:07,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:07:07,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:07:07,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:07:07,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:07:07,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:07:07,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:07:07,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:07:07,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:07:07,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:07:07,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:07:07,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:07:07,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:07:07,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:07:07,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:07:07,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:07:07,307 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:07:07,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:07:07,307 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:07:07,307 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:07:07,307 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:07:07,308 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:07:07,308 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:07:07,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:07:07,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:07:07,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:07:07,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:07:07,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:07:07,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:07:07,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:07:07,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:07:07,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:07:07,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:07:07,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:07:07,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cf25ea48272ba4463d41281066a1cec5687f4083cfa8522d5a9622c6308689c [2022-07-13 03:07:07,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:07:07,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:07:07,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:07:07,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:07:07,536 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:07:07,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2022-07-13 03:07:07,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73e1dc07/8f8bc181aecf4768be91d4ca4779e6c1/FLAG12eb4bd7b [2022-07-13 03:07:07,968 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:07:07,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1.c [2022-07-13 03:07:07,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73e1dc07/8f8bc181aecf4768be91d4ca4779e6c1/FLAG12eb4bd7b [2022-07-13 03:07:08,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73e1dc07/8f8bc181aecf4768be91d4ca4779e6c1 [2022-07-13 03:07:08,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:07:08,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:07:08,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:07:08,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:07:08,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:07:08,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16886e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08, skipping insertion in model container [2022-07-13 03:07:08,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:07:08,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:07:08,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:07:08,566 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:07:08,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:07:08,586 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:07:08,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08 WrapperNode [2022-07-13 03:07:08,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:07:08,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:07:08,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:07:08,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:07:08,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,617 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-13 03:07:08,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:07:08,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:07:08,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:07:08,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:07:08,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:07:08,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:07:08,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:07:08,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:07:08,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (1/1) ... [2022-07-13 03:07:08,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:08,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:08,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:08,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:07:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:07:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:07:08,768 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:07:08,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:07:08,814 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:07:08,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:07:08,819 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 03:07:08,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:07:08 BoogieIcfgContainer [2022-07-13 03:07:08,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:07:08,821 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:07:08,822 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:07:08,824 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:07:08,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:07:08,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:07:08" (1/3) ... [2022-07-13 03:07:08,831 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c64f80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:07:08, skipping insertion in model container [2022-07-13 03:07:08,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:07:08,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:07:08" (2/3) ... [2022-07-13 03:07:08,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c64f80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:07:08, skipping insertion in model container [2022-07-13 03:07:08,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:07:08,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:07:08" (3/3) ... [2022-07-13 03:07:08,834 INFO L354 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1.c [2022-07-13 03:07:08,884 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:07:08,884 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:07:08,884 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:07:08,885 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:07:08,885 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:07:08,885 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:07:08,885 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:07:08,885 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:07:08,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:07:08,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:07:08,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:07:08,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:07:08,906 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:07:08,907 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:07:08,907 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:07:08,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:07:08,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-13 03:07:08,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:07:08,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:07:08,909 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:07:08,909 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:07:08,914 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true [2022-07-13 03:07:08,914 INFO L754 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823);main_~y~0#1 := 1; 2#L19-2true assume !(main_~y~0#1 < main_~x~0#1); 9#L19-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L17-2true [2022-07-13 03:07:08,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:08,920 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:07:08,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:08,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306666689] [2022-07-13 03:07:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:08,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:09,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-07-13 03:07:09,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:09,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978282637] [2022-07-13 03:07:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:09,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:09,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:09,050 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:09,052 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-07-13 03:07:09,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:09,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775493870] [2022-07-13 03:07:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:09,069 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:09,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:09,195 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:07:09,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:07:09,196 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:07:09,196 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:07:09,197 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:07:09,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:07:09,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:07:09,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2022-07-13 03:07:09,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:07:09,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:07:09,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:07:09,333 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:07:09,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:07:09,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:07:09,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:09,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:07:09,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:07:09,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:07:09,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:07:09,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:09,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:07:09,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:07:09,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,458 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:07:09,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:09,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:07:09,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:07:09,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:07:09,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:09,563 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:07:09,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,571 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:07:09,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:07:09,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:07:09,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:07:09,571 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:07:09,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:07:09,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:07:09,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration1_Loop [2022-07-13 03:07:09,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:07:09,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:07:09,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:09,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:07:09,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:07:09,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:07:09,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:07:09,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:07:09,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:07:09,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:07:09,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:07:09,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:07:09,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:07:09,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:07:09,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,723 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:07:09,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:07:09,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:07:09,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:07:09,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:07:09,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:07:09,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:07:09,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:07:09,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:07:09,787 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:07:09,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:07:09,791 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:07:09,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:09,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:09,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:09,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:07:09,798 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:07:09,798 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:07:09,798 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:07:09,799 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-07-13 03:07:09,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:09,841 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:07:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:07:09,885 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:07:09,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:07:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:07:09,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:07:09,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:07:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:07:09,957 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-13 03:07:09,959 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:07:09,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2022-07-13 03:07:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:07:09,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:07:09,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-07-13 03:07:09,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-13 03:07:09,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:07:09,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-13 03:07:09,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:07:09,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-13 03:07:09,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:07:09,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-07-13 03:07:10,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:07:10,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-13 03:07:10,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-07-13 03:07:10,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-13 03:07:10,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-13 03:07:10,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:07:10,004 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-13 03:07:10,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-13 03:07:10,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-13 03:07:10,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:07:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-07-13 03:07:10,021 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-07-13 03:07:10,021 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-07-13 03:07:10,022 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:07:10,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-07-13 03:07:10,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:07:10,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:07:10,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:07:10,023 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:07:10,023 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:07:10,023 INFO L752 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 81#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 78#L17-2 assume !!(main_~x~0#1 >= 0 && main_~x~0#1 <= 1073741823);main_~y~0#1 := 1; 75#L19-2 [2022-07-13 03:07:10,023 INFO L754 eck$LassoCheckResult]: Loop: 75#L19-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 2 * main_~y~0#1; 75#L19-2 [2022-07-13 03:07:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-13 03:07:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:10,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694776293] [2022-07-13 03:07:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,029 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-07-13 03:07:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:10,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101490326] [2022-07-13 03:07:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:10,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:07:10,039 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-07-13 03:07:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:07:10,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462098720] [2022-07-13 03:07:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:07:10,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:07:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,044 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:07:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:07:10,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:07:10,074 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:07:10,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:07:10,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:07:10,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:07:10,075 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:07:10,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:10,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:07:10,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:07:10,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-LICS2004-Fig1.c_Iteration2_Lasso [2022-07-13 03:07:10,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:07:10,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:07:10,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:07:10,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:07:10,155 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:07:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:10,157 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:10,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:07:10,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:07:10,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:10,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:07:10,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:07:10,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:10,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:10,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:10,244 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:10,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:07:10,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:07:10,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:10,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:07:10,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:07:10,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:07:10,289 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:07:10,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:07:10,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:07:10,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:07:35,523 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