./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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/Sequence.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 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:09:28,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:09:28,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:09:28,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:09:28,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:09:28,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:09:28,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:09:28,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:09:28,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:09:28,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:09:28,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:09:28,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:09:28,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:09:28,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:09:28,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:09:28,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:09:28,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:09:28,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:09:28,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:09:28,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:09:28,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:09:28,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:09:28,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:09:28,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:09:28,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:09:28,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:09:28,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:09:28,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:09:28,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:09:28,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:09:28,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:09:28,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:09:28,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:09:28,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:09:28,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:09:28,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:09:28,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:09:28,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:09:28,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:09:28,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:09:28,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:09:28,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:09:28,399 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:09:28,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:09:28,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:09:28,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:09:28,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:09:28,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:09:28,400 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:09:28,400 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:09:28,401 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:09:28,401 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:09:28,401 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:09:28,401 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:09:28,401 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:09:28,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:09:28,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:09:28,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:09:28,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:09:28,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:09:28,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:09:28,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:09:28,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:09:28,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:09:28,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:09:28,404 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:09:28,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2023-02-14 03:09:28,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:09:28,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:09:28,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:09:28,579 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:09:28,580 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:09:28,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sequence.c [2023-02-14 03:09:29,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:09:29,788 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:09:29,789 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sequence.c [2023-02-14 03:09:29,792 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/358779e0c/46c602d5831b43cdab78d939c9cfbe52/FLAG0c7a08c75 [2023-02-14 03:09:29,805 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/358779e0c/46c602d5831b43cdab78d939c9cfbe52 [2023-02-14 03:09:29,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:09:29,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:09:29,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:09:29,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:09:29,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:09:29,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7c9e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29, skipping insertion in model container [2023-02-14 03:09:29,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:09:29,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:09:29,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:09:29,940 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:09:29,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:09:29,955 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:09:29,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29 WrapperNode [2023-02-14 03:09:29,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:09:29,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:09:29,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:09:29,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:09:29,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,974 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-14 03:09:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:09:29,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:09:29,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:09:29,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:09:29,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:09:29,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:09:29,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:09:29,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:09:29,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (1/1) ... [2023-02-14 03:09:29,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,015 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 03:09:30,061 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 03:09:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:09:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:09:30,129 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:09:30,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:09:30,194 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:09:30,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:09:30,200 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 03:09:30,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:30 BoogieIcfgContainer [2023-02-14 03:09:30,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:09:30,203 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:09:30,203 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:09:30,205 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:09:30,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:30,206 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:09:29" (1/3) ... [2023-02-14 03:09:30,206 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c9d9271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:09:30, skipping insertion in model container [2023-02-14 03:09:30,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:30,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:29" (2/3) ... [2023-02-14 03:09:30,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c9d9271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:09:30, skipping insertion in model container [2023-02-14 03:09:30,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:30,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:30" (3/3) ... [2023-02-14 03:09:30,208 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2023-02-14 03:09:30,258 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:09:30,259 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:09:30,259 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:09:30,259 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:09:30,259 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:09:30,259 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:09:30,259 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:09:30,260 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:09:30,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 03:09:30,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-14 03:09:30,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:30,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:30,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:09:30,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:09:30,277 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:09:30,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 03:09:30,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-14 03:09:30,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:30,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:30,279 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:09:30,279 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:09:30,284 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 8#L11-2true [2023-02-14 03:09:30,285 INFO L750 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 8#L11-2true [2023-02-14 03:09:30,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:30,295 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 03:09:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:30,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958673505] [2023-02-14 03:09:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:30,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:30,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-14 03:09:30,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:30,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819267128] [2023-02-14 03:09:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 03:09:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:30,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739593981] [2023-02-14 03:09:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:30,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:30,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:30,469 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:30,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:30,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:30,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:30,481 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:09:30,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:30,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:30,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2023-02-14 03:09:30,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:30,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:30,496 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 03:09:30,533 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 03:09:30,536 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 03:09:30,612 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:30,612 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:09:30,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,615 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 03:09:30,616 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 03:09:30,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:30,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:30,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:09:30,638 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 03:09:30,641 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 03:09:30,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,643 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 03:09:30,644 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 03:09:30,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:30,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:30,657 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:09:30,657 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 03:09:30,662 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 03:09:30,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,664 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 03:09:30,666 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 03:09:30,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:30,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:30,680 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 03:09:30,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,695 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 03:09:30,697 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 03:09:30,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:09:30,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:30,714 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:09:30,720 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 03:09:30,720 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:30,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:30,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:30,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:30,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:09:30,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:30,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:30,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2023-02-14 03:09:30,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:30,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:30,723 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 03:09:30,726 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 03:09:30,729 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 03:09:30,757 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:30,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:09:30,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,776 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 03:09:30,778 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 03:09:30,780 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 03:09:30,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:30,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:30,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:30,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:30,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:09:30,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:09:30,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:09:30,818 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 03:09:30,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,820 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 03:09:30,822 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 03:09:30,823 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 03:09:30,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:30,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:30,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:30,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:30,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:09:30,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:09:30,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:09:30,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-14 03:09:30,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,849 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 03:09:30,864 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 03:09:30,866 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 03:09:30,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:30,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:09:30,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:30,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:30,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:30,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:09:30,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:09:30,881 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:09:30,886 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 03:09:30,886 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 03:09:30,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:30,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:30,927 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 03:09:30,929 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 03:09:30,931 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:09:30,932 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:09:30,932 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:09:30,932 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2023-02-14 03:09:30,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-14 03:09:30,939 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:09:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:30,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:09:30,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:30,987 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:09:30,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:30,988 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 03:09:31,008 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 03:09:31,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 03:09:31,030 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 20 states and 29 transitions. Complement of second has 5 states. [2023-02-14 03:09:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:09:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 03:09:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 03:09:31,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-14 03:09:31,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-14 03:09:31,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 03:09:31,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2023-02-14 03:09:31,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:09:31,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 6 states and 8 transitions. [2023-02-14 03:09:31,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-14 03:09:31,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-14 03:09:31,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2023-02-14 03:09:31,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:09:31,042 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-14 03:09:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2023-02-14 03:09:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2023-02-14 03:09:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) 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 03:09:31,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2023-02-14 03:09:31,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-14 03:09:31,057 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-14 03:09:31,057 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:09:31,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2023-02-14 03:09:31,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:09:31,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:31,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:31,058 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 03:09:31,058 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:09:31,058 INFO L748 eck$LassoCheckResult]: Stem: 60#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 61#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 62#L11-2 assume !(main_~i~0#1 < 100); 59#L13-1 [2023-02-14 03:09:31,058 INFO L750 eck$LassoCheckResult]: Loop: 59#L13-1 assume !!(main_~j~0#1 < 21);main_~j~0#1 := 3 + main_~j~0#1; 59#L13-1 [2023-02-14 03:09:31,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:31,059 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2023-02-14 03:09:31,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:31,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235543779] [2023-02-14 03:09:31,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:31,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:09:31,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 03:09:31,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235543779] [2023-02-14 03:09:31,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235543779] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 03:09:31,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 03:09:31,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 03:09:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419126441] [2023-02-14 03:09:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 03:09:31,086 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 03:09:31,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2023-02-14 03:09:31,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:31,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844596284] [2023-02-14 03:09:31,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:31,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:31,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:31,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:31,102 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:31,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:31,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:31,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:31,102 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:09:31,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:31,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:31,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2023-02-14 03:09:31,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:31,103 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:31,104 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 03:09:31,106 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 03:09:31,111 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 03:09:31,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:31,134 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:09:31,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,149 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 03:09:31,154 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 03:09:31,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:31,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:31,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:09:31,169 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 03:09:31,174 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 03:09:31,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,175 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 03:09:31,224 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 03:09:31,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:31,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:31,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-14 03:09:31,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,250 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 03:09:31,252 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 03:09:31,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:09:31,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:31,294 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:09:31,303 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 03:09:31,303 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:31,303 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:31,303 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:31,303 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:31,304 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:09:31,304 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,304 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:31,304 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:31,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2023-02-14 03:09:31,304 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:31,304 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:31,305 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 03:09:31,309 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 03:09:31,315 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 03:09:31,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:31,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:09:31,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,345 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 03:09:31,347 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 03:09:31,348 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 03:09:31,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:31,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:31,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:31,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:31,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:09:31,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:09:31,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:09:31,387 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 03:09:31,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,401 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 03:09:31,411 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 03:09:31,411 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 03:09:31,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:31,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:09:31,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:31,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:31,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:31,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:09:31,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:09:31,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:09:31,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 03:09:31,435 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 03:09:31,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:31,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:31,457 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 03:09:31,504 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 03:09:31,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:09:31,504 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:09:31,505 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:09:31,505 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2023-02-14 03:09:31,507 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 03:09:31,508 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:09:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:31,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:09:31,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:31,527 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:09:31,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:31,527 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 03:09:31,528 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 03:09:31,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:31,531 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 8 transitions. Complement of second has 2 states. [2023-02-14 03:09:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-14 03:09:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:31,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2023-02-14 03:09:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-14 03:09:31,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-14 03:09:31,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-14 03:09:31,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:31,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2023-02-14 03:09:31,533 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:09:31,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2023-02-14 03:09:31,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:09:31,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:09:31,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:09:31,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:09:31,533 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:31,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:31,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 03:09:31,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 03:09:31,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 03:09:31,536 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 03:09:31,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 03:09:31,537 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-14 03:09:31,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-14 03:09:31,537 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:09:31,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 03:09:31,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:09:31,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:09:31,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:09:31,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:09:31,538 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:31,538 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:31,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 03:09:31,538 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:31,538 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 03:09:31,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:09:31,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:09:31,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:09:31,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:09:31 BoogieIcfgContainer [2023-02-14 03:09:31,543 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:09:31,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:09:31,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:09:31,544 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:09:31,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:30" (3/4) ... [2023-02-14 03:09:31,546 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:09:31,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:09:31,546 INFO L158 Benchmark]: Toolchain (without parser) took 1738.21ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 121.4MB in the beginning and 164.6MB in the end (delta: -43.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2023-02-14 03:09:31,547 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory was 105.4MB in the beginning and 105.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:31,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.11ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 112.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:09:31,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.81ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:09:31,555 INFO L158 Benchmark]: Boogie Preprocessor took 13.05ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 110.0MB in the end (delta: 983.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:31,555 INFO L158 Benchmark]: RCFGBuilder took 211.01ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 101.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:09:31,556 INFO L158 Benchmark]: BuchiAutomizer took 1340.71ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 101.6MB in the beginning and 164.6MB in the end (delta: -63.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-02-14 03:09:31,558 INFO L158 Benchmark]: Witness Printer took 2.32ms. Allocated memory is still 237.0MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:31,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory was 105.4MB in the beginning and 105.2MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.11ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 112.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.81ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 111.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.05ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 110.0MB in the end (delta: 983.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.01ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 101.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1340.71ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 101.6MB in the beginning and 164.6MB in the end (delta: -63.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 2.32ms. Allocated memory is still 237.0MB. Free memory is still 164.6MB. There was no memory consumed. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 03:09:31,574 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 03:09:31,775 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 03:09:31,980 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 Result: TRUE