./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 35987657 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-?-3598765 [2022-07-22 01:30:43,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:30:43,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:30:43,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:30:43,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:30:43,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:30:43,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:30:43,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:30:43,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:30:43,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:30:43,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:30:43,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:30:43,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:30:43,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:30:43,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:30:43,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:30:43,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:30:43,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:30:43,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:30:43,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:30:43,401 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:30:43,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:30:43,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:30:43,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:30:43,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:30:43,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:30:43,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:30:43,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:30:43,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:30:43,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:30:43,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:30:43,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:30:43,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:30:43,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:30:43,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:30:43,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:30:43,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:30:43,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:30:43,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:30:43,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:30:43,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:30:43,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:30:43,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:30:43,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:30:43,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:30:43,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:30:43,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:30:43,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:30:43,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:30:43,451 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:30:43,451 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:30:43,451 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:30:43,451 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:30:43,452 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:30:43,452 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:30:43,452 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:30:43,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:30:43,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:30:43,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:30:43,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:30:43,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:30:43,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:30:43,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:30:43,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:30:43,463 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:30:43,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:30:43,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:30:43,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:30:43,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:30:43,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:30:43,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:30:43,466 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:30:43,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57953bf177b77bdcba210d5dce369395d242a617ef951a05d4a0af10ca288ca4 [2022-07-22 01:30:43,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:30:43,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:30:43,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:30:43,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:30:43,811 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:30:43,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_03.c [2022-07-22 01:30:43,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a13b1f/6efa4c6cc90b49feb77ba85df1680d8f/FLAGda97fa592 [2022-07-22 01:30:44,283 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:30:44,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_03.c [2022-07-22 01:30:44,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a13b1f/6efa4c6cc90b49feb77ba85df1680d8f/FLAGda97fa592 [2022-07-22 01:30:44,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a13b1f/6efa4c6cc90b49feb77ba85df1680d8f [2022-07-22 01:30:44,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:30:44,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:30:44,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:44,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:30:44,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:30:44,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb157e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44, skipping insertion in model container [2022-07-22 01:30:44,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:30:44,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:30:44,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:44,465 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:30:44,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:44,499 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:30:44,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44 WrapperNode [2022-07-22 01:30:44,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:44,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:44,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:30:44,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:30:44,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,523 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-07-22 01:30:44,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:44,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:30:44,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:30:44,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:30:44,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:30:44,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:30:44,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:30:44,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:30:44,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (1/1) ... [2022-07-22 01:30:44,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:44,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:44,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:30:44,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:30:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:30:44,661 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:30:44,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:30:44,749 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:30:44,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:30:44,756 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:30:44,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:44 BoogieIcfgContainer [2022-07-22 01:30:44,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:30:44,759 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:30:44,759 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:30:44,762 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:30:44,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:44,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:30:44" (1/3) ... [2022-07-22 01:30:44,763 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@135e73ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:44, skipping insertion in model container [2022-07-22 01:30:44,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:44,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:44" (2/3) ... [2022-07-22 01:30:44,764 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@135e73ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:44, skipping insertion in model container [2022-07-22 01:30:44,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:44,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:44" (3/3) ... [2022-07-22 01:30:44,765 INFO L354 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2022-07-22 01:30:44,813 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:30:44,814 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:30:44,814 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:30:44,814 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:30:44,814 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:30:44,814 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:30:44,814 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:30:44,815 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:30:44,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:44,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:30:44,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:44,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:44,842 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:44,842 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:30:44,843 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:30:44,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:30:44,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:30:44,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:44,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:44,845 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:44,845 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:30:44,850 INFO L752 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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; 4#L10-2true [2022-07-22 01:30:44,851 INFO L754 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 2#L12-2true assume !(main_~j~0#1 < 1); 7#L12-3true main_~i~0#1 := main_~i~0#1; 4#L10-2true [2022-07-22 01:30:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:30:44,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:44,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927444285] [2022-07-22 01:30:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:44,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:44,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:44,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-07-22 01:30:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:44,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250637258] [2022-07-22 01:30:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:45,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:45,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250637258] [2022-07-22 01:30:45,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250637258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:30:45,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:30:45,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:30:45,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076124460] [2022-07-22 01:30:45,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:30:45,034 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:30:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:45,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:30:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:30:45,062 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) [2022-07-22 01:30:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:45,077 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-07-22 01:30:45,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:30:45,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2022-07-22 01:30:45,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:45,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2022-07-22 01:30:45,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-07-22 01:30:45,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:30:45,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2022-07-22 01:30:45,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:45,090 INFO L369 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:45,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2022-07-22 01:30:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-07-22 01:30:45,109 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) [2022-07-22 01:30:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-07-22 01:30:45,110 INFO L392 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:45,110 INFO L374 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-07-22 01:30:45,110 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:30:45,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-07-22 01:30:45,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:30:45,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:45,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:45,113 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:45,113 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:30:45,114 INFO L752 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 32#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 30#L10-2 [2022-07-22 01:30:45,114 INFO L754 eck$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 [2022-07-22 01:30:45,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:45,115 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-22 01:30:45,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:45,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824549126] [2022-07-22 01:30:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2022-07-22 01:30:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:45,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024225012] [2022-07-22 01:30:45,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:45,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,152 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:45,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2022-07-22 01:30:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:45,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501852463] [2022-07-22 01:30:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,178 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:45,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:45,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:30:45 BoogieIcfgContainer [2022-07-22 01:30:45,342 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:30:45,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:30:45,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:30:45,343 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:30:45,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:44" (3/4) ... [2022-07-22 01:30:45,346 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 01:30:45,382 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 01:30:45,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:30:45,384 INFO L158 Benchmark]: Toolchain (without parser) took 1076.48ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.6MB in the beginning and 51.2MB in the end (delta: -17.6MB). Peak memory consumption was 662.1kB. Max. memory is 16.1GB. [2022-07-22 01:30:45,384 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:30:45,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.67ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 38.6MB in the end (delta: -5.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-07-22 01:30:45,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.32ms. Allocated memory is still 54.5MB. Free memory was 38.4MB in the beginning and 37.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:45,386 INFO L158 Benchmark]: Boogie Preprocessor took 15.06ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 36.3MB in the end (delta: 952.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:30:45,386 INFO L158 Benchmark]: RCFGBuilder took 216.83ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 28.7MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:30:45,386 INFO L158 Benchmark]: BuchiAutomizer took 583.18ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 28.5MB in the beginning and 52.9MB in the end (delta: -24.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-07-22 01:30:45,387 INFO L158 Benchmark]: Witness Printer took 39.85ms. Allocated memory is still 71.3MB. Free memory was 52.5MB in the beginning and 51.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:45,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.67ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 38.6MB in the end (delta: -5.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.32ms. Allocated memory is still 54.5MB. Free memory was 38.4MB in the beginning and 37.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.06ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 36.3MB in the end (delta: 952.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.83ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 28.7MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 583.18ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 28.5MB in the beginning and 52.9MB in the end (delta: -24.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 39.85ms. Allocated memory is still 71.3MB. Free memory was 52.5MB in the beginning and 51.2MB in the end (delta: 1.3MB). 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 -1 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 InitialAbstractionConstructionTime: 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! [2022-07-22 01:30:45,436 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)