./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.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 06c9e9e5fbbf1cc74be5b07da6214ee5470bdc6403e06237275b94d0a60c1592 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:47:46,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:47:46,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:47:46,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:47:46,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:47:46,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:47:46,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:47:46,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:47:46,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:47:46,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:47:46,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:47:46,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:47:46,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:47:46,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:47:46,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:47:46,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:47:46,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:47:46,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:47:46,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:47:46,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:47:46,691 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:47:46,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:47:46,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:47:46,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:47:46,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:47:46,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:47:46,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:47:46,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:47:46,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:47:46,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:47:46,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:47:46,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:47:46,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:47:46,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:47:46,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:47:46,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:47:46,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:47:46,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:47:46,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:47:46,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:47:46,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:47:46,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:47:46,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 14:47:46,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:47:46,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:47:46,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:47:46,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:47:46,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:47:46,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:47:46,738 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:47:46,738 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 14:47:46,738 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 14:47:46,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:47:46,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:47:46,740 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 14:47:46,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:47:46,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 14:47:46,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:47:46,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:47:46,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:47:46,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:47:46,747 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 14:47:46,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06c9e9e5fbbf1cc74be5b07da6214ee5470bdc6403e06237275b94d0a60c1592 [2022-07-14 14:47:46,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:47:46,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:47:46,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:47:46,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:47:46,980 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:47:46,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2022-07-14 14:47:47,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf674449/8407453f36e2422ea2b2280168205107/FLAGe7a2e5189 [2022-07-14 14:47:47,362 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:47:47,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2022-07-14 14:47:47,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf674449/8407453f36e2422ea2b2280168205107/FLAGe7a2e5189 [2022-07-14 14:47:47,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf674449/8407453f36e2422ea2b2280168205107 [2022-07-14 14:47:47,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:47:47,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:47:47,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:47:47,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:47:47,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:47:47,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9a22fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47, skipping insertion in model container [2022-07-14 14:47:47,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:47:47,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:47:47,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:47:47,508 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:47:47,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:47:47,523 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:47:47,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47 WrapperNode [2022-07-14 14:47:47,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:47:47,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:47:47,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:47:47,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:47:47,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,542 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-07-14 14:47:47,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:47:47,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:47:47,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:47:47,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:47:47,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:47:47,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:47:47,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:47:47,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:47:47,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (1/1) ... [2022-07-14 14:47:47,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:47,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:47,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:47,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 14:47:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:47:47,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:47:47,646 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:47:47,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:47:47,690 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:47:47,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:47:47,695 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 14:47:47,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:47:47 BoogieIcfgContainer [2022-07-14 14:47:47,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:47:47,697 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 14:47:47,697 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 14:47:47,699 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 14:47:47,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:47:47,700 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 02:47:47" (1/3) ... [2022-07-14 14:47:47,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c19fa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:47:47, skipping insertion in model container [2022-07-14 14:47:47,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:47:47,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:47:47" (2/3) ... [2022-07-14 14:47:47,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c19fa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 02:47:47, skipping insertion in model container [2022-07-14 14:47:47,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 14:47:47,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:47:47" (3/3) ... [2022-07-14 14:47:47,702 INFO L354 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified.c [2022-07-14 14:47:47,740 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 14:47:47,740 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 14:47:47,740 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 14:47:47,740 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 14:47:47,740 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 14:47:47,740 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 14:47:47,741 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 14:47:47,741 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 14:47:47,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:47,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:47,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:47:47,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:47:47,762 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:47:47,762 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:47:47,762 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 14:47:47,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:47,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:47,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:47:47,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:47:47,764 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 14:47:47,764 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:47:47,768 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18-2true [2022-07-14 14:47:47,769 INFO L754 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 != main_~K~0#1); 4#L18true assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 6#L18-2true [2022-07-14 14:47:47,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 14:47:47,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:47,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676218628] [2022-07-14 14:47:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:47,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,855 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:47,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-07-14 14:47:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:47,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342449984] [2022-07-14 14:47:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,905 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-07-14 14:47:47,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:47,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404060739] [2022-07-14 14:47:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:47,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,925 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:47,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:48,003 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:48,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:48,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:48,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:48,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:47:48,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:48,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:48,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration1_Loop [2022-07-14 14:47:48,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:48,019 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:48,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:48,127 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:47:48,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,132 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) [2022-07-14 14:47:48,133 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 [2022-07-14 14:47:48,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:48,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:48,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:48,158 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: [] [2022-07-14 14:47:48,179 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 [2022-07-14 14:47:48,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,188 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) [2022-07-14 14:47:48,189 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 [2022-07-14 14:47:48,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:48,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:48,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:48,211 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: [] [2022-07-14 14:47:48,229 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 [2022-07-14 14:47:48,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,231 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) [2022-07-14 14:47:48,232 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 [2022-07-14 14:47:48,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:48,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:48,264 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 [2022-07-14 14:47:48,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,265 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) [2022-07-14 14:47:48,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:47:48,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:48,296 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 [2022-07-14 14:47:48,389 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:47:48,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-14 14:47:48,394 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:48,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:48,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:48,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:48,394 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:47:48,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:48,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:48,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration1_Loop [2022-07-14 14:47:48,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:48,395 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:48,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:48,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:47:48,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,488 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) [2022-07-14 14:47:48,489 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 [2022-07-14 14:47:48,491 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 [2022-07-14 14:47:48,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:48,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:48,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:48,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:48,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:47:48,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:47:48,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:47:48,537 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 [2022-07-14 14:47:48,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,544 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) [2022-07-14 14:47:48,545 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 [2022-07-14 14:47:48,546 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 [2022-07-14 14:47:48,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:48,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:48,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:48,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:48,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:47:48,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:47:48,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:47:48,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-14 14:47:48,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,593 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) [2022-07-14 14:47:48,594 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 [2022-07-14 14:47:48,597 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 [2022-07-14 14:47:48,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:48,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:47:48,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:48,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:48,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:48,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:47:48,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:47:48,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:47:48,624 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-14 14:47:48,624 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 14:47:48,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,627 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) [2022-07-14 14:47:48,628 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 [2022-07-14 14:47:48,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:47:48,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:47:48,629 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:47:48,630 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2022-07-14 14:47:48,645 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 [2022-07-14 14:47:48,649 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:47:48,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:48,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:48,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:48,709 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:47:48,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:48,748 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:48,749 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2022-07-14 14:47:48,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) Result 24 states and 31 transitions. Complement of second has 8 states. [2022-07-14 14:47:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-14 14:47:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-07-14 14:47:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-07-14 14:47:48,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-14 14:47:48,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:48,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-14 14:47:48,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:48,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-14 14:47:48,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:48,785 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-07-14 14:47:48,786 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:48,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-07-14 14:47:48,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-14 14:47:48,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-14 14:47:48,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-07-14 14:47:48,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:47:48,790 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-14 14:47:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-07-14 14:47:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-07-14 14:47:48,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-07-14 14:47:48,805 INFO L392 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-14 14:47:48,805 INFO L374 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-07-14 14:47:48,805 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 14:47:48,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-07-14 14:47:48,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:48,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:47:48,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:47:48,806 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-14 14:47:48,806 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:47:48,806 INFO L752 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 77#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 79#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 72#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 73#L18-2 [2022-07-14 14:47:48,806 INFO L754 eck$LassoCheckResult]: Loop: 73#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 78#L18 assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 73#L18-2 [2022-07-14 14:47:48,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-07-14 14:47:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:48,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482248311] [2022-07-14 14:47:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:48,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:48,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-07-14 14:47:48,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:48,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783139296] [2022-07-14 14:47:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:48,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:48,817 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:48,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:48,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:48,819 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-07-14 14:47:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:48,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623127550] [2022-07-14 14:47:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:47:48,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623127550] [2022-07-14 14:47:48,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623127550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:47:48,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:47:48,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:47:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817314632] [2022-07-14 14:47:48,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:47:48,884 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:48,884 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:48,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:48,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:48,884 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:47:48,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:48,885 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:48,885 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration2_Loop [2022-07-14 14:47:48,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:48,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:48,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,912 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 [2022-07-14 14:47:48,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:48,958 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:48,958 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:47:48,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:48,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:48,960 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) [2022-07-14 14:47:48,961 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 [2022-07-14 14:47:48,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:48,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:48,988 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:48,988 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: [] [2022-07-14 14:47:49,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:49,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,006 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) [2022-07-14 14:47:49,007 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 [2022-07-14 14:47:49,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:49,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:49,028 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:47:49,045 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 [2022-07-14 14:47:49,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,047 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) [2022-07-14 14:47:49,049 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 [2022-07-14 14:47:49,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:49,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,090 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 [2022-07-14 14:47:49,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,092 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) [2022-07-14 14:47:49,093 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 [2022-07-14 14:47:49,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:47:49,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,210 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:47:49,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-14 14:47:49,213 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:49,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:49,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:49,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:49,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:47:49,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:49,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:49,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration2_Loop [2022-07-14 14:47:49,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:49,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:49,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:49,291 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:47:49,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,293 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) [2022-07-14 14:47:49,294 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 [2022-07-14 14:47:49,296 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 [2022-07-14 14:47:49,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:49,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:49,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:49,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:49,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:47:49,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:47:49,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:47:49,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-14 14:47:49,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,341 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) [2022-07-14 14:47:49,342 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 [2022-07-14 14:47:49,343 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 [2022-07-14 14:47:49,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:49,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:47:49,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:49,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:49,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:49,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:47:49,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:47:49,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:47:49,361 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-14 14:47:49,361 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 14:47:49,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,363 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) [2022-07-14 14:47:49,364 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 [2022-07-14 14:47:49,367 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:47:49,367 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:47:49,367 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:47:49,367 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2022-07-14 14:47:49,385 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 [2022-07-14 14:47:49,386 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:47:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:49,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:49,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:49,415 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:47:49,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:49,427 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:49,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:49,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 12 states and 17 transitions. Complement of second has 5 states. [2022-07-14 14:47:49,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-14 14:47:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-14 14:47:49,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-14 14:47:49,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:49,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-14 14:47:49,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:49,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-14 14:47:49,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:49,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-07-14 14:47:49,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:49,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-07-14 14:47:49,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-07-14 14:47:49,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-14 14:47:49,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-07-14 14:47:49,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:47:49,444 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-07-14 14:47:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-07-14 14:47:49,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-14 14:47:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-07-14 14:47:49,445 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-07-14 14:47:49,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:47:49,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:47:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:47:49,448 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:47:49,460 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-07-14 14:47:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:47:49,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-07-14 14:47:49,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:49,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2022-07-14 14:47:49,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-14 14:47:49,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-14 14:47:49,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-07-14 14:47:49,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:47:49,462 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-07-14 14:47:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-07-14 14:47:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-07-14 14:47:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-07-14 14:47:49,464 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-07-14 14:47:49,464 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-07-14 14:47:49,464 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 14:47:49,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-07-14 14:47:49,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:49,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:47:49,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:47:49,465 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-14 14:47:49,465 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:47:49,465 INFO L752 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 162#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 156#L18 [2022-07-14 14:47:49,465 INFO L754 eck$LassoCheckResult]: Loop: 156#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 157#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 156#L18 [2022-07-14 14:47:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:49,466 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-14 14:47:49,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:49,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202253979] [2022-07-14 14:47:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:49,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2022-07-14 14:47:49,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:49,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358333722] [2022-07-14 14:47:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:49,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,475 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:49,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:49,478 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 2 times [2022-07-14 14:47:49,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:49,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102995671] [2022-07-14 14:47:49,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:49,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,483 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:49,485 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:49,498 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:49,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:49,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:49,499 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:49,499 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:47:49,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:49,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:49,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration3_Loop [2022-07-14 14:47:49,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:49,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:49,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:49,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:47:49,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,554 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) [2022-07-14 14:47:49,555 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 [2022-07-14 14:47:49,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:49,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,589 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:49,589 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:47:49,605 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 [2022-07-14 14:47:49,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,606 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) [2022-07-14 14:47:49,607 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 [2022-07-14 14:47:49,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:49,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:49,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,631 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:49,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-14 14:47:49,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:47:49,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:49,861 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:47:49,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:49,865 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:49,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:49,865 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:49,865 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:49,865 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:47:49,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:49,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:49,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration3_Loop [2022-07-14 14:47:49,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:49,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:49,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:49,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:49,919 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:47:49,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:49,924 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 [2022-07-14 14:47:49,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:49,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:49,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:49,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:49,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:47:49,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:47:49,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-14 14:47:49,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:47:49,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:49,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,965 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:49,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-14 14:47:49,966 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 [2022-07-14 14:47:49,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:49,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:47:49,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:49,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:49,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:49,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:47:49,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:47:49,982 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:47:49,985 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-14 14:47:49,985 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-14 14:47:49,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:49,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:49,987 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:49,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:47:49,992 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:47:49,992 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:47:49,992 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2022-07-14 14:47:49,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-14 14:47:50,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,012 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:47:50,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:50,070 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:50,071 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-07-14 14:47:50,081 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 12 states and 14 transitions. Complement of second has 5 states. [2022-07-14 14:47:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-14 14:47:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-07-14 14:47:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-07-14 14:47:50,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-14 14:47:50,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 14:47:50,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-14 14:47:50,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2022-07-14 14:47:50,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:50,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2022-07-14 14:47:50,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-14 14:47:50,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-14 14:47:50,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-07-14 14:47:50,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-14 14:47:50,087 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-07-14 14:47:50,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-07-14 14:47:50,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-14 14:47:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2022-07-14 14:47:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-07-14 14:47:50,089 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-14 14:47:50,089 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-14 14:47:50,089 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-14 14:47:50,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-07-14 14:47:50,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-14 14:47:50,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 14:47:50,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 14:47:50,090 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-07-14 14:47:50,091 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-14 14:47:50,091 INFO L752 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~K~0#1, main_~x~0#1;havoc main_~K~0#1;havoc main_~x~0#1;main_~K~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 217#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 213#L18 assume !(main_~x~0#1 > main_~K~0#1);main_~x~0#1 := 1 + main_~x~0#1; 214#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 211#L18 [2022-07-14 14:47:50,091 INFO L754 eck$LassoCheckResult]: Loop: 211#L18 assume main_~x~0#1 > main_~K~0#1;main_~x~0#1 := main_~x~0#1 - 1; 212#L18-2 assume !!(main_~x~0#1 != main_~K~0#1); 211#L18 [2022-07-14 14:47:50,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-07-14 14:47:50,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:50,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323508644] [2022-07-14 14:47:50,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:50,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:50,114 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:50,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:50,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-07-14 14:47:50,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:50,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782801619] [2022-07-14 14:47:50,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:50,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:50,124 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:47:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:47:50,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:47:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 2 times [2022-07-14 14:47:50,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:47:50,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078269917] [2022-07-14 14:47:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:47:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:47:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:50,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:47:50,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078269917] [2022-07-14 14:47:50,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078269917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:47:50,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:47:50,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:47:50,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357336611] [2022-07-14 14:47:50,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:47:50,173 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:50,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:50,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:50,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:50,173 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 14:47:50,173 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,173 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:50,173 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:50,173 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration4_Loop [2022-07-14 14:47:50,173 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:50,173 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:50,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:50,208 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 14:47:50,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,210 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-14 14:47:50,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:50,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:50,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:50,223 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:47:50,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,239 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-14 14:47:50,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:50,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:50,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-14 14:47:50,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-14 14:47:50,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,281 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-14 14:47:50,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 14:47:50,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:50,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-14 14:47:50,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,307 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-14 14:47:50,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 14:47:50,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 14:47:50,538 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 14:47:50,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-14 14:47:50,542 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 14:47:50,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 14:47:50,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 14:47:50,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 14:47:50,542 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 14:47:50,542 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 14:47:50,542 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 14:47:50,542 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified.c_Iteration4_Loop [2022-07-14 14:47:50,542 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 14:47:50,542 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 14:47:50,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 14:47:50,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 14:47:50,610 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 14:47:50,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,622 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-14 14:47:50,624 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 [2022-07-14 14:47:50,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:50,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:50,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:50,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:50,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 14:47:50,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 14:47:50,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 14:47:50,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,670 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-14 14:47:50,672 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 [2022-07-14 14:47:50,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 14:47:50,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 14:47:50,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 14:47:50,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 14:47:50,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 14:47:50,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 14:47:50,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 14:47:50,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 14:47:50,697 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 14:47:50,698 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 14:47:50,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 14:47:50,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:47:50,699 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 14:47:50,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-14 14:47:50,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 14:47:50,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 14:47:50,702 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 14:47:50,702 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~K~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~K~0#1 Supporting invariants [] [2022-07-14 14:47:50,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:50,717 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 14:47:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:50,760 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:50,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,766 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 9 transitions. Complement of second has 3 states. [2022-07-14 14:47:50,766 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 [2022-07-14 14:47:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2022-07-14 14:47:50,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 14:47:50,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,769 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:47:50,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,794 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:50,812 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:50,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 9 transitions. Complement of second has 3 states. [2022-07-14 14:47:50,817 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 [2022-07-14 14:47:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2022-07-14 14:47:50,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 14:47:50,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,819 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 14:47:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:47:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:47:50,846 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:47:50,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:47:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:47:50,856 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 14:47:50,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,866 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 4 states. [2022-07-14 14:47:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-14 14:47:50,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2022-07-14 14:47:50,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-14 14:47:50,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-14 14:47:50,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-14 14:47:50,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 14:47:50,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-07-14 14:47:50,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 14:47:50,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2022-07-14 14:47:50,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 14:47:50,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 14:47:50,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 14:47:50,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 14:47:50,869 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:47:50,869 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:47:50,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:47:50,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:47:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:47:50,870 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:47:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:47:50,870 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-07-14 14:47:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:47:50,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-07-14 14:47:50,870 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 14:47:50,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:47:50,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 14:47:50,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 14:47:50,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 14:47:50,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 14:47:50,871 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:47:50,871 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:47:50,871 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:47:50,871 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-14 14:47:50,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:47:50,872 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 14:47:50,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-14 14:47:50,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 02:47:50 BoogieIcfgContainer [2022-07-14 14:47:50,877 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 14:47:50,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:47:50,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:47:50,878 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:47:50,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:47:47" (3/4) ... [2022-07-14 14:47:50,880 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 14:47:50,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:47:50,880 INFO L158 Benchmark]: Toolchain (without parser) took 3499.11ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 68.8MB in the end (delta: -4.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-07-14 14:47:50,881 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:47:50,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.63ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 64.2MB in the end (delta: -397.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:47:50,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.70ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 62.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:47:50,881 INFO L158 Benchmark]: Boogie Preprocessor took 10.56ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 61.8MB in the end (delta: 973.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:47:50,882 INFO L158 Benchmark]: RCFGBuilder took 141.25ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 14:47:50,882 INFO L158 Benchmark]: BuchiAutomizer took 3180.14ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.9MB in the beginning and 68.8MB in the end (delta: -15.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-07-14 14:47:50,882 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 113.2MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:47:50,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.63ms. Allocated memory is still 92.3MB. Free memory was 63.8MB in the beginning and 64.2MB in the end (delta: -397.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.70ms. Allocated memory is still 92.3MB. Free memory was 64.2MB in the beginning and 62.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.56ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 61.8MB in the end (delta: 973.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 141.25ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3180.14ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.9MB in the beginning and 68.8MB in the end (delta: -15.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 113.2MB. Free memory is still 68.8MB. 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function K + -1 * x and consists of 5 locations. One deterministic module has affine ranking function K + -1 * x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * K and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * K and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 29 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax182 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf95 smp68 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-14 14:47:50,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-14 14:47:51,126 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