./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.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 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:25:39,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:25:39,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:25:39,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:25:39,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:25:39,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:25:39,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:25:39,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:25:39,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:25:39,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:25:39,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:25:39,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:25:39,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:25:39,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:25:39,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:25:39,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:25:39,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:25:39,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:25:39,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:25:39,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:25:39,937 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:25:39,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:25:39,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:25:39,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:25:39,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:25:39,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:25:39,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:25:39,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:25:39,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:25:39,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:25:39,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:25:39,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:25:39,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:25:39,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:25:39,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:25:39,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:25:39,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:25:39,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:25:39,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:25:39,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:25:39,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:25:39,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:25:39,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:25:39,985 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:25:39,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:25:39,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:25:39,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:25:39,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:25:39,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:25:39,987 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:25:39,987 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:25:39,987 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:25:39,988 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:25:39,988 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:25:39,988 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:25:39,993 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:25:39,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:25:39,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:25:39,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:25:39,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:25:39,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:25:39,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:25:39,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:25:39,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:25:39,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:25:39,997 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:25:39,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2022-07-22 01:25:40,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:25:40,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:25:40,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:25:40,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:25:40,254 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:25:40,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2022-07-22 01:25:40,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462e8cd0d/9467515ff5e54cd199a60cc28b12e6cc/FLAG6075bddb1 [2022-07-22 01:25:40,670 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:25:40,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2022-07-22 01:25:40,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462e8cd0d/9467515ff5e54cd199a60cc28b12e6cc/FLAG6075bddb1 [2022-07-22 01:25:41,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462e8cd0d/9467515ff5e54cd199a60cc28b12e6cc [2022-07-22 01:25:41,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:25:41,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:25:41,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:41,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:25:41,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:25:41,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679601ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41, skipping insertion in model container [2022-07-22 01:25:41,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:25:41,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:25:41,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:41,204 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:25:41,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:41,219 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:25:41,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41 WrapperNode [2022-07-22 01:25:41,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:41,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:41,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:25:41,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:25:41,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,250 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-07-22 01:25:41,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:41,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:25:41,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:25:41,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:25:41,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:25:41,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:25:41,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:25:41,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:25:41,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (1/1) ... [2022-07-22 01:25:41,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:41,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:41,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:41,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:25:41,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:25:41,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:25:41,395 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:25:41,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:25:41,475 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:25:41,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:25:41,481 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:25:41,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:41 BoogieIcfgContainer [2022-07-22 01:25:41,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:25:41,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:25:41,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:25:41,487 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:25:41,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:41,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:25:41" (1/3) ... [2022-07-22 01:25:41,488 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@776d33b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:41, skipping insertion in model container [2022-07-22 01:25:41,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:41,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:41" (2/3) ... [2022-07-22 01:25:41,489 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@776d33b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:41, skipping insertion in model container [2022-07-22 01:25:41,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:41,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:41" (3/3) ... [2022-07-22 01:25:41,491 INFO L354 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2022-07-22 01:25:41,545 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:25:41,545 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:25:41,545 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:25:41,545 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:25:41,545 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:25:41,546 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:25:41,546 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:25:41,546 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:25:41,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:41,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:41,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:41,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:41,567 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:25:41,567 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:41,568 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:25:41,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:41,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:41,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:41,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:41,570 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:25:41,570 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:41,575 INFO L752 eck$LassoCheckResult]: Stem: 3#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_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 10#L20true assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 8#L22-2true [2022-07-22 01:25:41,578 INFO L754 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 5#L24-2true assume !(main_~j~0#1 <= main_~i~0#1); 9#L24-3true main_~i~0#1 := 1 + main_~i~0#1; 8#L22-2true [2022-07-22 01:25:41,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:41,583 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-07-22 01:25:41,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:41,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411297605] [2022-07-22 01:25:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:41,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:41,663 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:41,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:41,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash 43923, now seen corresponding path program 1 times [2022-07-22 01:25:41,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:41,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439603012] [2022-07-22 01:25:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:41,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:41,696 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:41,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:41,707 INFO L85 PathProgramCache]: Analyzing trace with hash 889513810, now seen corresponding path program 1 times [2022-07-22 01:25:41,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:41,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225165883] [2022-07-22 01:25:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:41,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225165883] [2022-07-22 01:25:41,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225165883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:25:41,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:25:41,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:25:41,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627900954] [2022-07-22 01:25:41,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:25:41,858 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:41,859 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:41,859 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:41,859 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:41,859 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:41,859 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:41,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:41,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:41,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2022-07-22 01:25:41,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:41,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:41,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:41,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:41,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:41,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:41,974 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:41,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:41,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:41,977 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) [2022-07-22 01:25:41,978 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 [2022-07-22 01:25:41,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:41,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:42,003 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:42,003 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: [] [2022-07-22 01:25:42,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:25:42,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,021 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) [2022-07-22 01:25:42,022 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 [2022-07-22 01:25:42,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:42,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:42,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:42,058 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: [] [2022-07-22 01:25:42,079 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 [2022-07-22 01:25:42,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,082 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) [2022-07-22 01:25:42,084 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 [2022-07-22 01:25:42,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:42,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:42,128 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 [2022-07-22 01:25:42,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,131 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) [2022-07-22 01:25:42,133 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 [2022-07-22 01:25:42,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:42,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:42,256 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:42,262 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 [2022-07-22 01:25:42,263 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:42,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:42,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:42,263 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:42,263 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:42,263 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,263 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:42,263 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:42,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2022-07-22 01:25:42,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:42,263 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:42,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,342 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:42,345 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:42,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:42,351 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 [2022-07-22 01:25:42,352 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 [2022-07-22 01:25:42,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:42,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:42,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:42,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:42,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:42,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:42,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:42,403 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 [2022-07-22 01:25:42,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,405 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) [2022-07-22 01:25:42,406 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 [2022-07-22 01:25:42,407 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 [2022-07-22 01:25:42,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:42,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:42,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:42,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:42,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:42,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:42,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:42,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:42,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,457 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) [2022-07-22 01:25:42,458 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 [2022-07-22 01:25:42,459 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 [2022-07-22 01:25:42,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:42,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:42,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:42,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:42,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:42,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:42,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:42,488 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:42,493 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:42,493 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:42,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,507 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) [2022-07-22 01:25:42,525 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:42,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:42,526 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:42,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-22 01:25:42,535 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 [2022-07-22 01:25:42,551 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 [2022-07-22 01:25:42,553 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:42,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:42,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:42,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:42,607 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:25:42,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:42,685 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:42,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 4 states, 4 states have (on average 1.5) 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) [2022-07-22 01:25:42,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 4 states, 4 states have (on average 1.5) 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) Result 36 states and 54 transitions. Complement of second has 9 states. [2022-07-22 01:25:42,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) 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) [2022-07-22 01:25:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2022-07-22 01:25:42,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 3 letters. [2022-07-22 01:25:42,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:42,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 6 letters. Loop has 3 letters. [2022-07-22 01:25:42,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:42,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 6 letters. [2022-07-22 01:25:42,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:42,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-07-22 01:25:42,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:25:42,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 15 states and 20 transitions. [2022-07-22 01:25:42,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:42,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-07-22 01:25:42,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2022-07-22 01:25:42,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:42,747 INFO L369 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-07-22 01:25:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2022-07-22 01:25:42,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-07-22 01:25:42,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2022-07-22 01:25:42,763 INFO L392 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-07-22 01:25:42,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:42,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:25:42,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:25:42,765 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand has 4 states, 4 states have (on average 1.5) 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) [2022-07-22 01:25:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:42,783 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2022-07-22 01:25:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:25:42,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2022-07-22 01:25:42,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:25:42,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2022-07-22 01:25:42,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:42,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:42,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2022-07-22 01:25:42,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:25:42,786 INFO L369 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-07-22 01:25:42,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2022-07-22 01:25:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-07-22 01:25:42,792 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) [2022-07-22 01:25:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-07-22 01:25:42,793 INFO L392 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-22 01:25:42,793 INFO L374 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-07-22 01:25:42,794 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:25:42,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-07-22 01:25:42,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-22 01:25:42,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:42,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:42,797 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:25:42,798 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-22 01:25:42,798 INFO L752 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 127#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_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 130#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 131#L22-2 [2022-07-22 01:25:42,798 INFO L754 eck$LassoCheckResult]: Loop: 131#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 128#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 129#L24-2 assume !(main_~j~0#1 <= main_~i~0#1); 132#L24-3 main_~i~0#1 := 1 + main_~i~0#1; 131#L22-2 [2022-07-22 01:25:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:42,802 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2022-07-22 01:25:42,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:42,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778205504] [2022-07-22 01:25:42,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:42,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:42,820 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 [2022-07-22 01:25:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,832 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:42,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:42,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1363376, now seen corresponding path program 1 times [2022-07-22 01:25:42,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:42,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715542355] [2022-07-22 01:25:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:42,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,843 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:42,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126097, now seen corresponding path program 1 times [2022-07-22 01:25:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:42,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694180284] [2022-07-22 01:25:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,860 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:42,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:42,906 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:42,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:42,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:42,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:42,907 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:42,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:42,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:42,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2022-07-22 01:25:42,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:42,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:42,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:42,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:42,952 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:42,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,953 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) [2022-07-22 01:25:42,955 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 [2022-07-22 01:25:42,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:42,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:42,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:42,978 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: [] [2022-07-22 01:25:42,995 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 [2022-07-22 01:25:42,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:42,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:42,997 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) [2022-07-22 01:25:42,998 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 [2022-07-22 01:25:42,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:42,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,011 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: [] [2022-07-22 01:25:43,027 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 [2022-07-22 01:25:43,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,029 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) [2022-07-22 01:25:43,030 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 [2022-07-22 01:25:43,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,083 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 [2022-07-22 01:25:43,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,095 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) [2022-07-22 01:25:43,096 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 [2022-07-22 01:25:43,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:43,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,249 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:43,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:43,253 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:43,253 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:43,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:43,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:43,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:43,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:43,254 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:43,254 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2022-07-22 01:25:43,254 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:43,254 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:43,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:43,308 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:43,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,324 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) [2022-07-22 01:25:43,325 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 [2022-07-22 01:25:43,326 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 [2022-07-22 01:25:43,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:43,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:43,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:43,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:43,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:43,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:43,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:43,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:43,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,383 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) [2022-07-22 01:25:43,384 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 [2022-07-22 01:25:43,385 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 [2022-07-22 01:25:43,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:43,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:43,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:43,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:43,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:43,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:43,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:43,417 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 [2022-07-22 01:25:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,419 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) [2022-07-22 01:25:43,419 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 [2022-07-22 01:25:43,421 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 [2022-07-22 01:25:43,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:43,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:43,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:43,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:43,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:43,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:43,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:43,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:43,469 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 01:25:43,469 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:43,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,484 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) [2022-07-22 01:25:43,485 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 [2022-07-22 01:25:43,486 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:43,486 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:43,486 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:43,486 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-07-22 01:25:43,507 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 [2022-07-22 01:25:43,508 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:43,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:43,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:43,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:43,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:43,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:25:43,544 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 [2022-07-22 01:25:43,544 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 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) [2022-07-22 01:25:43,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. 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 11 states and 14 transitions. Complement of second has 4 states. [2022-07-22 01:25:43,552 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 [2022-07-22 01:25:43,552 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) [2022-07-22 01:25:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-22 01:25:43,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-22 01:25:43,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:43,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-22 01:25:43,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:43,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-22 01:25:43,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:43,553 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2022-07-22 01:25:43,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:43,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 13 transitions. [2022-07-22 01:25:43,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:25:43,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-07-22 01:25:43,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-07-22 01:25:43,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:43,554 INFO L369 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-07-22 01:25:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-07-22 01:25:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-07-22 01:25:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2022-07-22 01:25:43,555 INFO L392 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-22 01:25:43,555 INFO L374 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2022-07-22 01:25:43,555 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:25:43,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2022-07-22 01:25:43,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:43,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:43,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:43,555 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:25:43,555 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:43,555 INFO L752 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 186#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_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 192#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 193#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 187#L24-2 [2022-07-22 01:25:43,555 INFO L754 eck$LassoCheckResult]: Loop: 187#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 187#L24-2 [2022-07-22 01:25:43,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2022-07-22 01:25:43,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:43,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332032023] [2022-07-22 01:25:43,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:43,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2022-07-22 01:25:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:43,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-22 01:25:43,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597298548] [2022-07-22 01:25:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,589 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash 28693995, now seen corresponding path program 1 times [2022-07-22 01:25:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:43,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903364728] [2022-07-22 01:25:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:43,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,594 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:43,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:43,623 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:43,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:43,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:43,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:43,623 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:43,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:43,623 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:43,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2022-07-22 01:25:43,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:43,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:43,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:43,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:43,691 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:43,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,692 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) [2022-07-22 01:25:43,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,766 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 [2022-07-22 01:25:43,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:43,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-22 01:25:43,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,791 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) [2022-07-22 01:25:43,794 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 [2022-07-22 01:25:43,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,808 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,808 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:43,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-07-22 01:25:43,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,826 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) [2022-07-22 01:25:43,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,856 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:43,866 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 [2022-07-22 01:25:43,874 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 [2022-07-22 01:25:43,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,876 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) [2022-07-22 01:25:43,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,889 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:43,903 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 [2022-07-22 01:25:43,907 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 [2022-07-22 01:25:43,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,909 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) [2022-07-22 01:25:43,910 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 [2022-07-22 01:25:43,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,932 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,932 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:43,950 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 [2022-07-22 01:25:43,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,952 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) [2022-07-22 01:25:43,953 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 [2022-07-22 01:25:43,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,975 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:43,975 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: [] [2022-07-22 01:25:43,993 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 [2022-07-22 01:25:43,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:43,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:43,994 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) [2022-07-22 01:25:43,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:43,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:43,998 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 [2022-07-22 01:25:44,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:44,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:44,035 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 [2022-07-22 01:25:44,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,036 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) [2022-07-22 01:25:44,037 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 [2022-07-22 01:25:44,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:44,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:44,064 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 [2022-07-22 01:25:44,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,066 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) [2022-07-22 01:25:44,067 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 [2022-07-22 01:25:44,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:44,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:44,290 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:44,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:44,294 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:44,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:44,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:44,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:44,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:44,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:44,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:44,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2022-07-22 01:25:44,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:44,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:44,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:44,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:44,375 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:44,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,377 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) [2022-07-22 01:25:44,378 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 [2022-07-22 01:25:44,379 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 [2022-07-22 01:25:44,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:44,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:44,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,419 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 [2022-07-22 01:25:44,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,421 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) [2022-07-22 01:25:44,422 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 [2022-07-22 01:25:44,423 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 [2022-07-22 01:25:44,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:44,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:44,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:44,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,462 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 [2022-07-22 01:25:44,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,463 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) [2022-07-22 01:25:44,464 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 [2022-07-22 01:25:44,487 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 [2022-07-22 01:25:44,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:44,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:44,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:44,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,526 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 [2022-07-22 01:25:44,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,528 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-22 01:25:44,530 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 [2022-07-22 01:25:44,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:44,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:44,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:44,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:44,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,572 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-22 01:25:44,574 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 [2022-07-22 01:25:44,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:44,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:44,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:44,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:44,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,609 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-22 01:25:44,611 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 [2022-07-22 01:25:44,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:44,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:44,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:44,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:44,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,652 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 01:25:44,654 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 [2022-07-22 01:25:44,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:44,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:44,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:44,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:44,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,703 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:25:44,711 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 [2022-07-22 01:25:44,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:44,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:44,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:44,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:44,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:44,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:44,734 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:44,748 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-07-22 01:25:44,748 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-07-22 01:25:44,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:44,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:44,749 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:44,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:25:44,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:44,820 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-07-22 01:25:44,820 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:44,820 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [-2*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2022-07-22 01:25:44,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-22 01:25:44,842 INFO L293 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-07-22 01:25:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:44,887 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:25:44,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:44,915 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:25:44,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:44,916 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-22 01:25:44,916 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 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) [2022-07-22 01:25:44,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. 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 15 states and 19 transitions. Complement of second has 6 states. [2022-07-22 01:25:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:44,938 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) [2022-07-22 01:25:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-22 01:25:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-07-22 01:25:44,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-22 01:25:44,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:44,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-22 01:25:44,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:44,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2022-07-22 01:25:44,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:44,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 15 transitions. [2022-07-22 01:25:44,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-07-22 01:25:44,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-07-22 01:25:44,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-07-22 01:25:44,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:44,940 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-22 01:25:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-07-22 01:25:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2022-07-22 01:25:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2022-07-22 01:25:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2022-07-22 01:25:44,941 INFO L392 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-07-22 01:25:44,941 INFO L374 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-07-22 01:25:44,941 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:25:44,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2022-07-22 01:25:44,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:25:44,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:44,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:44,942 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-07-22 01:25:44,942 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:44,942 INFO L752 eck$LassoCheckResult]: Stem: 260#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 261#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_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 267#L20 assume main_~k~0#1 >= 1;main_~i~0#1 := 0; 268#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 263#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 264#L24-2 assume !(main_~j~0#1 <= main_~i~0#1); 265#L24-3 main_~i~0#1 := 1 + main_~i~0#1; 266#L22-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 262#L24-2 [2022-07-22 01:25:44,942 INFO L754 eck$LassoCheckResult]: Loop: 262#L24-2 assume !!(main_~j~0#1 <= main_~i~0#1);main_~j~0#1 := main_~j~0#1 + main_~k~0#1; 262#L24-2 [2022-07-22 01:25:44,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:44,943 INFO L85 PathProgramCache]: Analyzing trace with hash 124334173, now seen corresponding path program 2 times [2022-07-22 01:25:44,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:44,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626339629] [2022-07-22 01:25:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:44,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,948 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2022-07-22 01:25:44,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:44,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199960500] [2022-07-22 01:25:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:44,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:44,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:44,960 INFO L85 PathProgramCache]: Analyzing trace with hash -440607910, now seen corresponding path program 3 times [2022-07-22 01:25:44,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:44,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669068704] [2022-07-22 01:25:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:44,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,967 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:44,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:45,009 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:45,009 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:45,009 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:45,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:45,010 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:45,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,010 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:45,010 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:45,010 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2022-07-22 01:25:45,010 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:45,010 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:45,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,071 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:45,071 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,073 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-22 01:25:45,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,096 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,096 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:45,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,113 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:25:45,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,122 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,123 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:45,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,140 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-22 01:25:45,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,163 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: [] [2022-07-22 01:25:45,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,180 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-22 01:25:45,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,189 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,189 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:45,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-22 01:25:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,207 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-22 01:25:45,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,230 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:45,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-22 01:25:45,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,248 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-22 01:25:45,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:45,271 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: [] [2022-07-22 01:25:45,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-22 01:25:45,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,288 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-22 01:25:45,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:45,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-07-22 01:25:45,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,329 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-22 01:25:45,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:45,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:45,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:45,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,687 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:45,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:45,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:45,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:45,687 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:45,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:45,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:45,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2022-07-22 01:25:45,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:45,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:45,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:45,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,789 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:45,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:45,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,791 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-22 01:25:45,794 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 [2022-07-22 01:25:45,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:45,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:45,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:45,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:45,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:45,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,833 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-22 01:25:45,835 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 [2022-07-22 01:25:45,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:45,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:45,842 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:45,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:45,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:45,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,874 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-22 01:25:45,876 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 [2022-07-22 01:25:45,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:45,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:45,883 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:45,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:45,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,916 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-22 01:25:45,918 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 [2022-07-22 01:25:45,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:45,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:45,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:45,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:45,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:45,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,949 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-22 01:25:45,951 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 [2022-07-22 01:25:45,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:45,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:45,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:45,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:45,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:45,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:45,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:45,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:45,990 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:45,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-22 01:25:45,992 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 [2022-07-22 01:25:45,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:45,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:45,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:45,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:46,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:46,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:46,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:46,023 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-07-22 01:25:46,023 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-07-22 01:25:46,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:46,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:46,025 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:46,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-07-22 01:25:46,027 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:46,048 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-22 01:25:46,048 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:46,048 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2022-07-22 01:25:46,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-07-22 01:25:46,067 INFO L293 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-07-22 01:25:46,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:46,112 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-22 01:25:46,112 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,129 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 13 states and 16 transitions. Complement of second has 6 states. [2022-07-22 01:25:46,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:46,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-22 01:25:46,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-22 01:25:46,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:46,130 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,169 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:46,170 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-22 01:25:46,170 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 13 states and 16 transitions. Complement of second has 6 states. [2022-07-22 01:25:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-07-22 01:25:46,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-22 01:25:46,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:46,185 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:46,220 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:25:46,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:46,221 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-22 01:25:46,221 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 11 states and 13 transitions. Complement of second has 5 states. [2022-07-22 01:25:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-07-22 01:25:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-07-22 01:25:46,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-22 01:25:46,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:46,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 1 letters. [2022-07-22 01:25:46,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:46,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-22 01:25:46,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:46,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-07-22 01:25:46,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:46,238 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:25:46,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:25:46,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:25:46,239 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:25:46,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:25:46,239 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:46,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:25:46,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:25:46 BoogieIcfgContainer [2022-07-22 01:25:46,244 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:25:46,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:25:46,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:25:46,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:25:46,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:41" (3/4) ... [2022-07-22 01:25:46,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:25:46,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:25:46,247 INFO L158 Benchmark]: Toolchain (without parser) took 5141.78ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 35.5MB in the beginning and 31.5MB in the end (delta: 4.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-07-22 01:25:46,247 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:46,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 114.13ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 26.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:25:46,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.65ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 53.6MB in the end (delta: -27.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-22 01:25:46,248 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.8MB in the end (delta: 772.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:46,248 INFO L158 Benchmark]: RCFGBuilder took 216.68ms. Allocated memory is still 69.2MB. Free memory was 52.6MB in the beginning and 44.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:25:46,249 INFO L158 Benchmark]: BuchiAutomizer took 4759.70ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 44.4MB in the beginning and 32.0MB in the end (delta: 12.3MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-07-22 01:25:46,249 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 83.9MB. Free memory was 32.0MB in the beginning and 31.5MB in the end (delta: 570.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:46,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 114.13ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 26.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.65ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 53.6MB in the end (delta: -27.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.8MB in the end (delta: 772.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.68ms. Allocated memory is still 69.2MB. Free memory was 52.6MB in the beginning and 44.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4759.70ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 44.4MB in the beginning and 32.0MB in the end (delta: 12.3MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 83.9MB. Free memory was 32.0MB in the beginning and 31.5MB in the end (delta: 570.8kB). 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. One deterministic module has affine ranking function -2 * j + n and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 2 * i + 1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 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: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 33 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax159 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf92 smp100 dnf100 smp100 tf103 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:25:46,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:46,488 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