./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/java_Sequence.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/java_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 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:27:34,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:27:34,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:27:34,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:27:34,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:27:34,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:27:34,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:27:34,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:27:34,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:27:34,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:27:34,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:27:34,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:27:34,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:27:34,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:27:34,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:27:34,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:27:34,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:27:34,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:27:34,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:27:34,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:27:34,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:27:34,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:27:34,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:27:34,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:27:34,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:27:34,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:27:34,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:27:34,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:27:34,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:27:34,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:27:34,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:27:34,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:27:34,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:27:34,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:27:34,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:27:34,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:27:34,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:27:34,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:27:34,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:27:34,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:27:34,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:27:34,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:27:34,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:27:34,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:27:34,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:27:34,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:27:34,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:27:34,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:27:34,569 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:27:34,569 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:27:34,569 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:27:34,569 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:27:34,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:27:34,570 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:27:34,570 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:27:34,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:27:34,571 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:27:34,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:27:34,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:27:34,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:27:34,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:27:34,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:27:34,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:27:34,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:27:34,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:27:34,574 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:27:34,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7fd2dfb73ccf40686976b843bd7f2e1f45b17323a2ffa706fb90cccb1bab75 [2022-02-21 03:27:34,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:27:34,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:27:34,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:27:34,856 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:27:34,857 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:27:34,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-02-21 03:27:34,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d7b79a5/29331bcce2e44cd6b9ab4d663a805862/FLAG4686e9bda [2022-02-21 03:27:35,323 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:27:35,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_Sequence.c [2022-02-21 03:27:35,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d7b79a5/29331bcce2e44cd6b9ab4d663a805862/FLAG4686e9bda [2022-02-21 03:27:35,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d7b79a5/29331bcce2e44cd6b9ab4d663a805862 [2022-02-21 03:27:35,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:27:35,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:27:35,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:27:35,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:27:35,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:27:35,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe6c79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35, skipping insertion in model container [2022-02-21 03:27:35,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:27:35,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:27:35,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:27:35,561 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:27:35,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:27:35,588 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:27:35,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35 WrapperNode [2022-02-21 03:27:35,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:27:35,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:27:35,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:27:35,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:27:35,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,614 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-02-21 03:27:35,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:27:35,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:27:35,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:27:35,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:27:35,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:27:35,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:27:35,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:27:35,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:27:35,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (1/1) ... [2022-02-21 03:27:35,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:35,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:35,667 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) [2022-02-21 03:27:35,686 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 [2022-02-21 03:27:35,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:27:35,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:27:35,737 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:27:35,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:27:35,806 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:27:35,812 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:27:35,813 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 03:27:35,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:27:35 BoogieIcfgContainer [2022-02-21 03:27:35,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:27:35,815 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:27:35,815 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:27:35,818 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:27:35,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:27:35,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:27:35" (1/3) ... [2022-02-21 03:27:35,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c445b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:27:35, skipping insertion in model container [2022-02-21 03:27:35,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:27:35,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:27:35" (2/3) ... [2022-02-21 03:27:35,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c445b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:27:35, skipping insertion in model container [2022-02-21 03:27:35,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:27:35,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:27:35" (3/3) ... [2022-02-21 03:27:35,821 INFO L388 chiAutomizerObserver]: Analyzing ICFG java_Sequence.c [2022-02-21 03:27:35,873 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:27:35,873 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:27:35,873 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:27:35,873 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:27:35,873 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:27:35,873 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:27:35,874 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:27:35,874 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:27:35,891 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) [2022-02-21 03:27:35,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:35,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:35,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:35,916 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:27:35,916 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:27:35,916 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:27:35,917 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) [2022-02-21 03:27:35,920 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:35,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:35,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:35,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:27:35,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:27:35,926 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 4#L10-2true [2022-02-21 03:27:35,926 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 100);main_~c~0#1 := 1 + main_~c~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4#L10-2true [2022-02-21 03:27:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:35,931 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:27:35,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:27:35,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131610432] [2022-02-21 03:27:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:27:35,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:27:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:35,996 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:27:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:36,014 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:27:36,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-02-21 03:27:36,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:27:36,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088192782] [2022-02-21 03:27:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:27:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:27:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:36,034 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:27:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:36,049 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:27:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-02-21 03:27:36,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:27:36,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087554874] [2022-02-21 03:27:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:27:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:27:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:36,070 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:27:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:36,079 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:27:36,176 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:27:36,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:27:36,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:27:36,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:27:36,177 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:27:36,177 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,177 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:27:36,177 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:27:36,177 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2022-02-21 03:27:36,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:27:36,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:27:36,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:27:36,362 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:27:36,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-02-21 03:27:36,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:36,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:27:36,418 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:27:36,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-02-21 03:27:36,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:36,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:27:36,460 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:27:36,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-02-21 03:27:36,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:36,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-02-21 03:27:36,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:27:36,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:27:36,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=0} Honda state: {ULTIMATE.start_main_~c~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=2}, {ULTIMATE.start_main_~c~0#1=-1}] Lambdas: [6, 1, 1] Nus: [0, 0] [2022-02-21 03:27:36,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,579 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-02-21 03:27:36,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:36,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,654 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-02-21 03:27:36,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:27:36,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:36,734 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:27:36,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,738 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:27:36,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:27:36,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:27:36,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:27:36,739 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:27:36,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:27:36,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:27:36,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration1_Loop [2022-02-21 03:27:36,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:27:36,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:27:36,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:36,847 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:27:36,851 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:27:36,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-02-21 03:27:36,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:36,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:36,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:36,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:36,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:36,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:27:36,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:27:36,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:27:36,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,902 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-02-21 03:27:36,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:36,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:36,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:27:36,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:36,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:36,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:36,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:27:36,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:27:36,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:27:36,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:36,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,938 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-02-21 03:27:36,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:36,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:36,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:36,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:36,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:36,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:27:36,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:27:36,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:27:36,990 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 [2022-02-21 03:27:36,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:36,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:36,991 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:27:36,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-02-21 03:27:36,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:37,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:37,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:27:37,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:37,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:37,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:37,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:27:37,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:27:37,015 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:27:37,018 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:27:37,018 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:27:37,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,020 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) [2022-02-21 03:27:37,021 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 [2022-02-21 03:27:37,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:27:37,048 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:27:37,048 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:27:37,048 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 [] [2022-02-21 03:27:37,064 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 [2022-02-21 03:27:37,084 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:27:37,089 INFO L390 LassoCheck]: Loop: "assume !!(main_~i~0#1 < 100);main_~c~0#1 := 1 + main_~c~0#1;main_~i~0#1 := 1 + main_~i~0#1;" [2022-02-21 03:27:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:27:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:27:37,130 INFO L290 TraceCheckUtils]: 0: Hoare triple {19#unseeded} assume { :begin_inline_ULTIMATE.init } true; {19#unseeded} is VALID [2022-02-21 03:27:37,131 INFO L290 TraceCheckUtils]: 1: Hoare triple {19#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; {19#unseeded} is VALID [2022-02-21 03:27:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,136 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:27:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:27:37,140 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 199))} assume !!(main_~i~0#1 < 100);main_~c~0#1 := 1 + main_~c~0#1;main_~i~0#1 := 1 + main_~i~0#1; {32#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~i~0#1|) 199))) unseeded)} is VALID [2022-02-21 03:27:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:27:37,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 03:27:37,160 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:27:37,161 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,165 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-02-21 03:27:37,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2022-02-21 03:27:37,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 22 states and 30 transitions. Complement of second has 5 states. [2022-02-21 03:27:37,204 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 [2022-02-21 03:27:37,204 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:27:37,205 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) [2022-02-21 03:27:37,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:37,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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) [2022-02-21 03:27:37,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:37,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,208 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2022-02-21 03:27:37,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:27:37,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,210 INFO L70 LassoExtractor]: Start lassoExtractor. 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) [2022-02-21 03:27:37,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:37,211 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:27:37,211 INFO L70 LassoExtractor]: Start lassoExtractor. 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) [2022-02-21 03:27:37,213 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-02-21 03:27:37,213 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:27:37,213 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 22 states and 30 transitions. cyclomatic complexity: 12 [2022-02-21 03:27:37,213 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:27:37,213 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,213 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,214 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,214 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,214 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,215 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,215 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:27:37,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,215 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:27:37,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 22 letters. Loop has 22 letters. [2022-02-21 03:27:37,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 9 letters. Loop has 9 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 9 letters. Loop has 9 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 9 letters. Loop has 9 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 4 letters. [2022-02-21 03:27:37,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,216 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,217 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,217 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,217 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,219 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,219 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 22 states and 30 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,219 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:27:37,222 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) [2022-02-21 03:27:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-02-21 03:27:37,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:27:37,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 3 letters. Loop has 1 letters. [2022-02-21 03:27:37,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2022-02-21 03:27:37,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. cyclomatic complexity: 12 [2022-02-21 03:27:37,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:27:37,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 6 states and 8 transitions. [2022-02-21 03:27:37,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-02-21 03:27:37,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-02-21 03:27:37,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2022-02-21 03:27:37,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:27:37,229 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-02-21 03:27:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2022-02-21 03:27:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-02-21 03:27:37,244 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:27:37,245 INFO L82 GeneralOperation]: Start isEquivalent. First operand 6 states and 8 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-02-21 03:27:37,245 INFO L74 IsIncluded]: Start isIncluded. First operand 6 states and 8 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-02-21 03:27:37,247 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-02-21 03:27:37,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:27:37,249 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2022-02-21 03:27:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2022-02-21 03:27:37,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:27:37,250 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:27:37,250 INFO L74 IsIncluded]: Start isIncluded. First operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 6 states and 8 transitions. [2022-02-21 03:27:37,250 INFO L87 Difference]: Start difference. First operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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 6 states and 8 transitions. [2022-02-21 03:27:37,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:27:37,251 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2022-02-21 03:27:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2022-02-21 03:27:37,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:27:37,251 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:27:37,251 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:27:37,251 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:27:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 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) [2022-02-21 03:27:37,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-02-21 03:27:37,252 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-02-21 03:27:37,252 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-02-21 03:27:37,252 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:27:37,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2022-02-21 03:27:37,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:27:37,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,253 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-02-21 03:27:37,253 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2022-02-21 03:27:37,253 INFO L791 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 73#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, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; 69#L10-2 assume !(main_~i~0#1 < 100); 70#L10-3 main_~j~0#1 := 5; 74#L15-2 [2022-02-21 03:27:37,253 INFO L793 eck$LassoCheckResult]: Loop: 74#L15-2 assume !!(main_~j~0#1 < 21);main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 3 + main_~j~0#1; 74#L15-2 [2022-02-21 03:27:37,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:37,254 INFO L85 PathProgramCache]: Analyzing trace with hash 925737, now seen corresponding path program 1 times [2022-02-21 03:27:37,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:27:37,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463967868] [2022-02-21 03:27:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:27:37,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:27:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,293 INFO L290 TraceCheckUtils]: 0: Hoare triple {90#true} assume { :begin_inline_ULTIMATE.init } true; {90#true} is VALID [2022-02-21 03:27:37,294 INFO L290 TraceCheckUtils]: 1: Hoare triple {90#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; {92#(<= |ULTIMATE.start_main_~i~0#1| 0)} is VALID [2022-02-21 03:27:37,301 INFO L290 TraceCheckUtils]: 2: Hoare triple {92#(<= |ULTIMATE.start_main_~i~0#1| 0)} assume !(main_~i~0#1 < 100); {91#false} is VALID [2022-02-21 03:27:37,301 INFO L290 TraceCheckUtils]: 3: Hoare triple {91#false} main_~j~0#1 := 5; {91#false} is VALID [2022-02-21 03:27:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:27:37,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:27:37,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463967868] [2022-02-21 03:27:37,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463967868] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:27:37,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:27:37,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:27:37,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529895266] [2022-02-21 03:27:37,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:27:37,309 INFO L796 eck$LassoCheckResult]: stem already infeasible [2022-02-21 03:27:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2022-02-21 03:27:37,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:27:37,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994459946] [2022-02-21 03:27:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:27:37,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:27:37,330 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 [2022-02-21 03:27:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:37,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:27:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:27:37,335 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:27:37,353 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:27:37,353 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:27:37,353 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:27:37,353 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:27:37,353 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:27:37,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:27:37,354 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:27:37,354 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2022-02-21 03:27:37,354 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:27:37,354 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:27:37,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:27:37,438 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:27:37,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,456 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) [2022-02-21 03:27:37,471 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 [2022-02-21 03:27:37,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:37,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:37,492 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:27:37,492 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:27:37,507 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 [2022-02-21 03:27:37,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,509 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) [2022-02-21 03:27:37,509 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 [2022-02-21 03:27:37,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:27:37,510 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:37,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:37,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,534 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) [2022-02-21 03:27:37,535 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 [2022-02-21 03:27:37,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:27:37,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:27:37,580 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:27:37,583 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 [2022-02-21 03:27:37,583 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:27:37,583 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:27:37,583 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:27:37,583 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:27:37,583 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:27:37,583 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:27:37,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:27:37,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence.c_Iteration2_Loop [2022-02-21 03:27:37,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:27:37,584 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:27:37,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:27:37,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:27:37,652 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:27:37,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,653 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2022-02-21 03:27:37,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-02-21 03:27:37,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:37,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:37,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:37,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:37,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:37,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-02-21 03:27:37,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-02-21 03:27:37,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:27:37,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-02-21 03:27:37,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,696 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2022-02-21 03:27:37,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-02-21 03:27:37,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-02-21 03:27:37,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:27:37,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:27:37,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:27:37,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:27:37,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:27:37,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:27:37,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:27:37,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:27:37,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:27:37,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-02-21 03:27:37,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:27:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:27:37,727 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2022-02-21 03:27:37,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-02-21 03:27:37,730 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:27:37,730 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:27:37,730 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:27:37,730 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 [] [2022-02-21 03:27:37,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-02-21 03:27:37,754 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:27:37,757 INFO L390 LassoCheck]: Loop: "assume !!(main_~j~0#1 < 21);main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 3 + main_~j~0#1;" [2022-02-21 03:27:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:27:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:27:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:27:37,783 INFO L290 TraceCheckUtils]: 0: Hoare triple {95#unseeded} assume { :begin_inline_ULTIMATE.init } true; {95#unseeded} is VALID [2022-02-21 03:27:37,783 INFO L290 TraceCheckUtils]: 1: Hoare triple {95#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~c~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~c~0#1;main_~c~0#1 := 0;main_~i~0#1 := 0; {95#unseeded} is VALID [2022-02-21 03:27:37,784 INFO L290 TraceCheckUtils]: 2: Hoare triple {95#unseeded} assume !(main_~i~0#1 < 100); {95#unseeded} is VALID [2022-02-21 03:27:37,784 INFO L290 TraceCheckUtils]: 3: Hoare triple {95#unseeded} main_~j~0#1 := 5; {95#unseeded} is VALID [2022-02-21 03:27:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,791 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:27:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:27:37,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:27:37,795 INFO L290 TraceCheckUtils]: 0: Hoare triple {98#(>= oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~j~0#1|) 43))} assume !!(main_~j~0#1 < 21);main_~c~0#1 := 1 + main_~c~0#1;main_~j~0#1 := 3 + main_~j~0#1; {108#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 2) |ULTIMATE.start_main_~j~0#1|) 43))) unseeded)} is VALID [2022-02-21 03:27:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:27:37,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:27:37,798 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:27:37,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,798 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-02-21 03:27:37,799 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:27:37,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 9 transitions. Complement of second has 2 states. [2022-02-21 03:27:37,813 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 [2022-02-21 03:27:37,813 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:27:37,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2022-02-21 03:27:37,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:27:37,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:27:37,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:27:37,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:27:37,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-02-21 03:27:37,814 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:27:37,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:27:37,814 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states and 8 transitions. cyclomatic complexity: 4 [2022-02-21 03:27:37,814 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:27:37,814 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:27:37,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-02-21 03:27:37,814 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2022-02-21 03:27:37,814 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states and 9 transitions. cyclomatic complexity: 4 [2022-02-21 03:27:37,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. cyclomatic complexity: 4 [2022-02-21 03:27:37,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:27:37,815 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:27:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 6 letters. Loop has 6 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 2 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2022-02-21 03:27:37,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,817 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:27:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:27:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2022-02-21 03:27:37,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-02-21 03:27:37,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2022-02-21 03:27:37,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-02-21 03:27:37,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:27:37,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. cyclomatic complexity: 4 [2022-02-21 03:27:37,819 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:27:37,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 0 states and 0 transitions. [2022-02-21 03:27:37,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:27:37,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:27:37,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:27:37,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:27:37,819 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:27:37,819 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:27:37,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:27:37,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 03:27:37,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 03:27:37,821 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-02-21 03:27:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:27:37,821 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-21 03:27:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-21 03:27:37,822 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-02-21 03:27:37,824 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:27:37,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:27:37,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:27:37,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:27:37,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:27:37,825 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 03:27:37,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:27:37,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:27:37,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:27:37,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:27:37 BoogieIcfgContainer [2022-02-21 03:27:37,830 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:27:37,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:27:37,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:27:37,831 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:27:37,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:27:35" (3/4) ... [2022-02-21 03:27:37,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:27:37,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:27:37,834 INFO L158 Benchmark]: Toolchain (without parser) took 2484.99ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 69.6MB in the beginning and 73.0MB in the end (delta: -3.5MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-02-21 03:27:37,834 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:27:37,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.67ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 79.2MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:27:37,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.48ms. Allocated memory is still 102.8MB. Free memory was 79.2MB in the beginning and 77.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:27:37,835 INFO L158 Benchmark]: Boogie Preprocessor took 13.52ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:27:37,835 INFO L158 Benchmark]: RCFGBuilder took 183.62ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 68.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:27:37,835 INFO L158 Benchmark]: BuchiAutomizer took 2015.27ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 68.8MB in the beginning and 73.0MB in the end (delta: -4.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-02-21 03:27:37,835 INFO L158 Benchmark]: Witness Printer took 2.27ms. Allocated memory is still 130.0MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:27:37,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.67ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 79.2MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.48ms. Allocated memory is still 102.8MB. Free memory was 79.2MB in the beginning and 77.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.52ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 183.62ms. Allocated memory is still 102.8MB. Free memory was 76.8MB in the beginning and 68.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2015.27ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 68.8MB in the beginning and 73.0MB in the end (delta: -4.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 2.27ms. Allocated memory is still 130.0MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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, 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 13 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:27:37,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-02-21 03:27:38,076 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