./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 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/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-?-3dbbec3 [2023-02-14 14:44:40,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:44:40,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:44:40,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:44:40,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:44:40,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:44:40,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:44:40,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:44:40,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:44:40,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:44:40,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:44:40,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:44:40,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:44:40,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:44:40,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:44:40,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:44:40,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:44:40,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:44:40,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:44:40,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:44:40,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:44:40,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:44:40,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:44:40,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:44:40,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:44:40,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:44:40,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:44:40,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:44:40,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:44:40,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:44:40,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:44:40,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:44:40,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:44:40,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:44:40,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:44:40,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:44:40,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:44:40,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:44:40,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:44:40,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:44:40,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:44:40,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:44:40,816 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:44:40,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:44:40,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:44:40,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:44:40,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:44:40,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:44:40,818 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:44:40,818 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:44:40,818 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:44:40,819 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:44:40,819 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:44:40,819 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:44:40,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:44:40,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:44:40,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:44:40,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:44:40,821 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:44:40,821 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:44:40,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:44:40,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:44:40,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:44:40,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:44:40,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:44:40,823 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:44:40,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2023-02-14 14:44:41,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:44:41,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:44:41,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:44:41,093 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:44:41,093 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:44:41,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Sequence.c [2023-02-14 14:44:42,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:44:42,380 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:44:42,380 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Sequence.c [2023-02-14 14:44:42,385 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa565c3b8/bc6d039fb75f40959987b063ea537097/FLAGc55e1cbb9 [2023-02-14 14:44:42,395 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa565c3b8/bc6d039fb75f40959987b063ea537097 [2023-02-14 14:44:42,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:44:42,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:44:42,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:44:42,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:44:42,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:44:42,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3970b1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42, skipping insertion in model container [2023-02-14 14:44:42,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:44:42,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:44:42,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:44:42,498 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:44:42,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:44:42,513 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:44:42,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42 WrapperNode [2023-02-14 14:44:42,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:44:42,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:44:42,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:44:42,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:44:42,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,532 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-14 14:44:42,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:44:42,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:44:42,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:44:42,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:44:42,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,544 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:44:42,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:44:42,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:44:42,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:44:42,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (1/1) ... [2023-02-14 14:44:42,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:42,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:42,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:42,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-14 14:44:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:44:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:44:42,646 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:44:42,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:44:42,697 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:44:42,705 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:44:42,706 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:44:42,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:42 BoogieIcfgContainer [2023-02-14 14:44:42,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:44:42,708 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:44:42,708 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:44:42,711 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:44:42,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:42,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:44:42" (1/3) ... [2023-02-14 14:44:42,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17be9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:44:42, skipping insertion in model container [2023-02-14 14:44:42,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:42,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:44:42" (2/3) ... [2023-02-14 14:44:42,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17be9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:44:42, skipping insertion in model container [2023-02-14 14:44:42,713 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:44:42,713 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:42" (3/3) ... [2023-02-14 14:44:42,714 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2023-02-14 14:44:42,758 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:44:42,759 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:44:42,759 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:44:42,759 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:44:42,759 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:44:42,759 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:44:42,759 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:44:42,760 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:44:42,764 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 14:44:42,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-14 14:44:42,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:42,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:42,781 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:44:42,781 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:44:42,781 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:44:42,785 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 14:44:42,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-02-14 14:44:42,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:42,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:42,786 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:44:42,787 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:44:42,792 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 8#L11-2true [2023-02-14 14:44:42,792 INFO L750 eck$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 14:44:42,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:44:42,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:42,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812318430] [2023-02-14 14:44:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:42,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-14 14:44:42,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:42,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524251401] [2023-02-14 14:44:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:42,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 14:44:42,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:42,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533579416] [2023-02-14 14:44:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:42,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:42,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:42,969 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:42,970 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:42,970 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:42,970 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:42,970 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:42,970 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:42,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:42,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:42,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2023-02-14 14:44:42,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:42,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:42,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,014 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:43,091 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:43,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-14 14:44:43,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:43,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:43,144 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:44:43,152 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 [2023-02-14 14:44:43,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-14 14:44:43,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:43,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:43,197 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:44:43,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-14 14:44:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-14 14:44:43,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:43,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-14 14:44:43,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:43,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,272 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:43,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,279 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:43,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:43,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:43,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:43,280 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:43,280 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,280 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:43,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:43,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2023-02-14 14:44:43,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:43,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:43,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:43,348 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:43,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-14 14:44:43,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:43,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:43,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:43,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:43,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:43,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:43,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:43,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:43,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-14 14:44:43,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-14 14:44:43,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:43,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:43,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:43,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:43,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:43,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:43,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:43,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:43,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,469 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-14 14:44:43,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:43,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:43,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:43,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:43,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:43,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:43,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:43,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:43,490 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:43,493 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:43,493 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:43,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,530 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-14 14:44:43,533 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:43,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:43,534 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:43,534 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 14:44:43,537 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 14:44:43,540 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:43,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:43,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:43,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:43,593 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:43,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:43,634 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 14:44:43,635 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 14:44:43,660 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 14:44:43,662 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 14:44:43,666 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 14:44:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:44:43,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-14 14:44:43,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:43,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-14 14:44:43,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:43,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 14:44:43,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:43,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2023-02-14 14:44:43,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:44:43,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 6 states and 8 transitions. [2023-02-14 14:44:43,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-14 14:44:43,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-14 14:44:43,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2023-02-14 14:44:43,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:44:43,673 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-14 14:44:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2023-02-14 14:44:43,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2023-02-14 14:44:43,689 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 14:44:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2023-02-14 14:44:43,691 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-14 14:44:43,691 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2023-02-14 14:44:43,691 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:44:43,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2023-02-14 14:44:43,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 14:44:43,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:44:43,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:44:43,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 14:44:43,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:44:43,693 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 14:44:43,693 INFO L750 eck$LassoCheckResult]: Loop: 59#L13-1 assume !!(main_~j~0#1 < 21);main_~j~0#1 := 3 + main_~j~0#1; 59#L13-1 [2023-02-14 14:44:43,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2023-02-14 14:44:43,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:43,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658444876] [2023-02-14 14:44:43,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:43,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:43,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:44:43,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658444876] [2023-02-14 14:44:43,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658444876] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:44:43,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:44:43,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:44:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10917761] [2023-02-14 14:44:43,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:44:43,725 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:44:43,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:43,726 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2023-02-14 14:44:43,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:44:43,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752749343] [2023-02-14 14:44:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:44:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:44:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:43,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:44:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:44:43,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:44:43,741 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:43,741 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:43,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:43,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:43,742 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:44:43,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:43,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:43,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2023-02-14 14:44:43,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:43,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:43,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,745 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,773 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:43,774 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:44:43,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-14 14:44:43,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:43,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:44:43,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:44:43,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-14 14:44:43,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-14 14:44:43,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:44:43,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,851 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-14 14:44:43,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:44:43,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:44:43,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:44:43,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,875 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:44:43,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:44:43,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:44:43,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:44:43,875 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:44:43,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:44:43,875 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:44:43,875 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2023-02-14 14:44:43,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:44:43,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:44:43,876 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,884 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:44:43,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:44:43,910 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:44:43,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,911 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:43,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:43,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:43,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:43,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:43,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:44:43,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:44:43,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-14 14:44:43,957 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:44:43,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:43,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:43,964 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:43,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-14 14:44:43,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:44:43,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:44:43,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:44:43,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:44:43,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:44:43,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:44:43,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:44:43,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:44:43,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:44:44,001 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:44:44,002 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:44:44,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:44:44,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:44:44,004 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:44:44,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-14 14:44:44,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:44:44,006 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:44:44,006 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:44:44,006 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 14:44:44,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-14 14:44:44,011 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:44:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:44:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:44,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:44:44,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:44:44,030 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:44:44,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:44:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:44:44,031 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 14:44:44,031 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 14:44:44,034 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 14:44:44,035 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 14:44:44,036 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 14:44:44,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2023-02-14 14:44:44,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-14 14:44:44,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:44,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-14 14:44:44,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:44,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-14 14:44:44,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:44:44,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2023-02-14 14:44:44,038 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:44:44,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2023-02-14 14:44:44,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:44:44,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:44:44,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:44:44,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:44:44,039 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:44:44,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:44:44,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:44:44,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:44:44,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:44:44,042 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 14:44:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:44:44,046 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-02-14 14:44:44,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-02-14 14:44:44,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:44:44,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 14:44:44,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:44:44,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:44:44,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:44:44,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:44:44,047 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:44:44,047 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:44:44,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 14:44:44,049 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:44:44,049 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:44:44,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:44:44,050 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:44:44,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:44:44,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:44:44 BoogieIcfgContainer [2023-02-14 14:44:44,055 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:44:44,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:44:44,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:44:44,056 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:44:44,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:44:42" (3/4) ... [2023-02-14 14:44:44,058 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:44:44,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:44:44,059 INFO L158 Benchmark]: Toolchain (without parser) took 1660.70ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 95.4MB in the beginning and 122.6MB in the end (delta: -27.1MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,059 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:44:44,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 115.56ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 86.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.68ms. Allocated memory is still 140.5MB. Free memory was 86.5MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,060 INFO L158 Benchmark]: Boogie Preprocessor took 12.48ms. Allocated memory is still 140.5MB. Free memory was 85.0MB in the beginning and 83.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:44:44,060 INFO L158 Benchmark]: RCFGBuilder took 161.06ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 75.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,061 INFO L158 Benchmark]: BuchiAutomizer took 1347.35ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 75.5MB in the beginning and 123.6MB in the end (delta: -48.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,061 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 192.9MB. Free memory was 123.6MB in the beginning and 122.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:44:44,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 115.56ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 86.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.68ms. Allocated memory is still 140.5MB. Free memory was 86.5MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.48ms. Allocated memory is still 140.5MB. Free memory was 85.0MB in the beginning and 83.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 161.06ms. Allocated memory is still 140.5MB. Free memory was 83.9MB in the beginning and 75.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1347.35ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 75.5MB in the beginning and 123.6MB in the end (delta: -48.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 192.9MB. Free memory was 123.6MB in the beginning and 122.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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 14:44:44,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:44,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-14 14:44:44,500 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