./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b 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/NO_03.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 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:00:36,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:00:36,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:00:36,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:00:36,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:00:36,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:00:36,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:00:36,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:00:36,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:00:36,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:00:36,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:00:36,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:00:36,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:00:36,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:00:36,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:00:36,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:00:36,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:00:36,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:00:36,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:00:36,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:00:36,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:00:36,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:00:36,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:00:36,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:00:36,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:00:36,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:00:36,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:00:36,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:00:36,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:00:36,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:00:36,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:00:36,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:00:36,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:00:36,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:00:36,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:00:36,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:00:36,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:00:36,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:00:36,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:00:36,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:00:36,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:00:36,583 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-14 23:00:36,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:00:36,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:00:36,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:00:36,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:00:36,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:00:36,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:00:36,615 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:00:36,615 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:00:36,615 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:00:36,615 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:00:36,616 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:00:36,616 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:00:36,617 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:00:36,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:00:36,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:00:36,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:00:36,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:00:36,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:00:36,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:00:36,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:00:36,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:00:36,618 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:00:36,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:00:36,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:00:36,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:00:36,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:00:36,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:00:36,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:00:36,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:00:36,621 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:00:36,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 [2021-12-14 23:00:36,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:00:36,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:00:36,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:00:36,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:00:36,901 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:00:36,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-14 23:00:36,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844377b6/ffebba6e837e42cfba361532cfbd30b6/FLAGec33573ec [2021-12-14 23:00:37,345 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:00:37,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_03.c [2021-12-14 23:00:37,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844377b6/ffebba6e837e42cfba361532cfbd30b6/FLAGec33573ec [2021-12-14 23:00:37,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b844377b6/ffebba6e837e42cfba361532cfbd30b6 [2021-12-14 23:00:37,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:00:37,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:00:37,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:00:37,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:00:37,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:00:37,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583ef735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37, skipping insertion in model container [2021-12-14 23:00:37,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:00:37,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:00:37,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:00:37,521 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:00:37,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:00:37,543 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:00:37,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37 WrapperNode [2021-12-14 23:00:37,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:00:37,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:00:37,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:00:37,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:00:37,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,570 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-14 23:00:37,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:00:37,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:00:37,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:00:37,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:00:37,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:00:37,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:00:37,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:00:37,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:00:37,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (1/1) ... [2021-12-14 23:00:37,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:00:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:00:37,616 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) [2021-12-14 23:00:37,641 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 [2021-12-14 23:00:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:00:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:00:37,708 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:00:37,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:00:37,778 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:00:37,784 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:00:37,785 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:00:37,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:00:37 BoogieIcfgContainer [2021-12-14 23:00:37,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:00:37,788 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:00:37,788 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:00:37,791 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:00:37,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:00:37,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:00:37" (1/3) ... [2021-12-14 23:00:37,794 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@302a9bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:00:37, skipping insertion in model container [2021-12-14 23:00:37,794 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:00:37,794 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:00:37" (2/3) ... [2021-12-14 23:00:37,795 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@302a9bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:00:37, skipping insertion in model container [2021-12-14 23:00:37,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:00:37,795 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:00:37" (3/3) ... [2021-12-14 23:00:37,797 INFO L388 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2021-12-14 23:00:37,842 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:00:37,842 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:00:37,843 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:00:37,843 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:00:37,843 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:00:37,843 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:00:37,843 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:00:37,843 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:00:37,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:00:37,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:00:37,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:00:37,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:00:37,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:00:37,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:00:37,879 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:00:37,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:00:37,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:00:37,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:00:37,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:00:37,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:00:37,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:00:37,887 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#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; 5#L10-2true [2021-12-14 23:00:37,888 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 3#L12-2true assume !(main_~j~0#1 < 1); 8#L12-3true main_~i~0#1 := main_~i~0#1; 5#L10-2true [2021-12-14 23:00:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:00:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:00:37,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:00:37,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342436431] [2021-12-14 23:00:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:00:37,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:00:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:37,972 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:00:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:37,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:00:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:00:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-12-14 23:00:38,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:00:38,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617507680] [2021-12-14 23:00:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:00:38,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:00:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:00:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:00:38,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:00:38,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617507680] [2021-12-14 23:00:38,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617507680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:00:38,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:00:38,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 23:00:38,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174144342] [2021-12-14 23:00:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:00:38,088 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:00:38,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:00:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:00:38,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:00:38,120 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) 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) [2021-12-14 23:00:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:00:38,150 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-12-14 23:00:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:00:38,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-14 23:00:38,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:00:38,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2021-12-14 23:00:38,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-14 23:00:38,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-14 23:00:38,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-12-14 23:00:38,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:00:38,177 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-14 23:00:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-12-14 23:00:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-12-14 23:00:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2021-12-14 23:00:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-12-14 23:00:38,206 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-14 23:00:38,206 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-12-14 23:00:38,206 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:00:38,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-12-14 23:00:38,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-14 23:00:38,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:00:38,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:00:38,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:00:38,207 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-14 23:00:38,207 INFO L791 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 30#L10-2 [2021-12-14 23:00:38,208 INFO L793 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 28#L12-2 assume !!(main_~j~0#1 < 1);main_~j~0#1 := 1 + main_~j~0#1; 29#L12-2 assume !(main_~j~0#1 < 1); 33#L12-3 main_~i~0#1 := main_~i~0#1; 30#L10-2 [2021-12-14 23:00:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:00:38,208 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-14 23:00:38,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:00:38,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546659722] [2021-12-14 23:00:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:00:38,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:00:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,212 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:00:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:00:38,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:00:38,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2021-12-14 23:00:38,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:00:38,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572993254] [2021-12-14 23:00:38,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:00:38,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:00:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,248 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:00:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:00:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:00:38,258 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2021-12-14 23:00:38,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:00:38,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598952029] [2021-12-14 23:00:38,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:00:38,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:00:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,269 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:00:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:00:38,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:00:38,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:00:38 BoogieIcfgContainer [2021-12-14 23:00:38,391 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:00:38,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:00:38,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:00:38,392 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:00:38,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:00:37" (3/4) ... [2021-12-14 23:00:38,395 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:00:38,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:00:38,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:00:38,438 INFO L158 Benchmark]: Toolchain (without parser) took 1074.57ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 53.5MB in the end (delta: 11.8MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2021-12-14 23:00:38,439 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:00:38,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.43ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 90.8MB in the end (delta: -25.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:00:38,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.11ms. Allocated memory is still 113.2MB. Free memory was 90.8MB in the beginning and 89.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:00:38,440 INFO L158 Benchmark]: Boogie Preprocessor took 13.79ms. Allocated memory is still 113.2MB. Free memory was 89.1MB in the beginning and 88.7MB in the end (delta: 405.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:00:38,441 INFO L158 Benchmark]: RCFGBuilder took 201.58ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 80.7MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-14 23:00:38,441 INFO L158 Benchmark]: BuchiAutomizer took 603.11ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 55.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-14 23:00:38,441 INFO L158 Benchmark]: Witness Printer took 45.43ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:00:38,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.43ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 65.3MB in the beginning and 90.8MB in the end (delta: -25.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.11ms. Allocated memory is still 113.2MB. Free memory was 90.8MB in the beginning and 89.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.79ms. Allocated memory is still 113.2MB. Free memory was 89.1MB in the beginning and 88.7MB in the end (delta: 405.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 201.58ms. Allocated memory is still 113.2MB. Free memory was 88.2MB in the beginning and 80.7MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 603.11ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 55.2MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 45.43ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.6MB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {j=1, i=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:00:38,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)