./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.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 b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:16:57,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:16:57,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:16:57,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:16:57,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:16:57,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:16:57,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:16:57,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:16:57,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:16:57,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:16:57,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:16:57,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:16:57,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:16:57,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:16:57,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:16:57,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:16:57,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:16:57,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:16:57,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:16:57,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:16:57,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:16:57,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:16:57,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:16:57,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:16:57,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:16:57,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:16:57,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:16:57,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:16:57,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:16:57,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:16:57,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:16:57,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:16:57,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:16:57,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:16:57,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:16:57,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:16:57,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:16:57,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:16:57,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:16:57,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:16:57,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:16:57,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:16:57,726 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:16:57,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:16:57,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:16:57,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:16:57,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:16:57,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:16:57,728 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:16:57,729 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:16:57,729 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:16:57,729 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:16:57,729 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:16:57,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:16:57,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:16:57,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:16:57,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:16:57,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:16:57,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:16:57,733 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:16:57,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 [2023-02-15 14:16:57,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:16:57,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:16:57,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:16:57,984 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:16:57,984 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:16:57,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2023-02-15 14:16:59,094 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:16:59,247 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:16:59,247 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2023-02-15 14:16:59,251 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/142a620a5/99b32a83b8884b6fba8b2354ba7b055f/FLAGbe929af4d [2023-02-15 14:16:59,666 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/142a620a5/99b32a83b8884b6fba8b2354ba7b055f [2023-02-15 14:16:59,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:16:59,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:16:59,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:59,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:16:59,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:16:59,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9594ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59, skipping insertion in model container [2023-02-15 14:16:59,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:16:59,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:16:59,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:59,828 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:16:59,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:59,844 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:16:59,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59 WrapperNode [2023-02-15 14:16:59,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:59,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:59,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:16:59,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:16:59,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,863 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-15 14:16:59,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:59,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:16:59,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:16:59,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:16:59,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:16:59,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:16:59,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:16:59,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:16:59,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (1/1) ... [2023-02-15 14:16:59,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,912 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) [2023-02-15 14:16:59,941 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 [2023-02-15 14:16:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:16:59,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:17:00,015 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:17:00,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:17:00,089 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:17:00,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:17:00,094 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 14:17:00,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:00 BoogieIcfgContainer [2023-02-15 14:17:00,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:17:00,096 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:17:00,096 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:17:00,099 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:17:00,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:00,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:16:59" (1/3) ... [2023-02-15 14:17:00,101 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a7709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:17:00, skipping insertion in model container [2023-02-15 14:17:00,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:00,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:59" (2/3) ... [2023-02-15 14:17:00,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a7709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:17:00, skipping insertion in model container [2023-02-15 14:17:00,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:17:00,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:00" (3/3) ... [2023-02-15 14:17:00,105 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2023-02-15 14:17:00,166 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:17:00,166 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:17:00,166 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:17:00,166 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:17:00,166 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:17:00,166 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:17:00,167 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:17:00,167 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:17:00,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:00,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 14:17:00,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:00,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:00,195 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:17:00,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 14:17:00,196 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:17:00,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:00,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-15 14:17:00,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:00,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:00,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:17:00,199 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 14:17:00,204 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L10-2true [2023-02-15 14:17:00,205 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 2#L12-2true assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 5#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L10-2true [2023-02-15 14:17:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 14:17:00,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:00,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466739979] [2023-02-15 14:17:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-02-15 14:17:00,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:00,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367314810] [2023-02-15 14:17:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:00,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-02-15 14:17:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:00,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604420929] [2023-02-15 14:17:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:00,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:00,450 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:00,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:00,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:00,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:00,469 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:17:00,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:00,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:00,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2023-02-15 14:17:00,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:00,470 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:00,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:00,592 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:17:00,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,631 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) [2023-02-15 14:17:00,632 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 [2023-02-15 14:17:00,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:00,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:00,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:00,660 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: [] [2023-02-15 14:17:00,675 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 [2023-02-15 14:17:00,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,677 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) [2023-02-15 14:17:00,679 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 [2023-02-15 14:17:00,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:00,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:00,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:00,696 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: [] [2023-02-15 14:17:00,715 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 [2023-02-15 14:17:00,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,725 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) [2023-02-15 14:17:00,727 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 [2023-02-15 14:17:00,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:00,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:00,809 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 [2023-02-15 14:17:00,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,812 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) [2023-02-15 14:17:00,815 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 [2023-02-15 14:17:00,816 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:00,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:00,842 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:17:00,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:00,848 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:00,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:00,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:00,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:00,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:17:00,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:00,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:00,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2023-02-15 14:17:00,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:00,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:00,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,871 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:00,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:00,920 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:17:00,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,931 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) [2023-02-15 14:17:00,933 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 [2023-02-15 14:17:00,934 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 [2023-02-15 14:17:00,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:00,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:00,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:00,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:00,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:00,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:00,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:00,958 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 [2023-02-15 14:17:00,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:00,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:00,961 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) [2023-02-15 14:17:00,962 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 [2023-02-15 14:17:00,964 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 [2023-02-15 14:17:00,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:00,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:17:00,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:00,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:00,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:00,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:17:00,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:17:00,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:17:01,007 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:17:01,007 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 14:17:01,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,063 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) [2023-02-15 14:17:01,064 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 [2023-02-15 14:17:01,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:17:01,065 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:17:01,065 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:17:01,066 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-15 14:17:01,071 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 [2023-02-15 14:17:01,074 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:17:01,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:17:01,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,130 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:17:01,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:01,164 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 14:17:01,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2023-02-15 14:17:01,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 24 states and 36 transitions. Complement of second has 7 states. [2023-02-15 14:17:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 14:17:01,210 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) [2023-02-15 14:17:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2023-02-15 14:17:01,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-15 14:17:01,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-15 14:17:01,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-15 14:17:01,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2023-02-15 14:17:01,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:01,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-15 14:17:01,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-15 14:17:01,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-15 14:17:01,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-15 14:17:01,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:17:01,222 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:17:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-15 14:17:01,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-02-15 14:17:01,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-15 14:17:01,238 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 14:17:01,238 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 14:17:01,238 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:17:01,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-15 14:17:01,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:01,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:01,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:01,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 14:17:01,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:01,239 INFO L748 eck$LassoCheckResult]: Stem: 79#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 80#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 77#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 74#L12-2 [2023-02-15 14:17:01,239 INFO L750 eck$LassoCheckResult]: Loop: 74#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 74#L12-2 [2023-02-15 14:17:01,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 14:17:01,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662553652] [2023-02-15 14:17:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:01,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,254 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-02-15 14:17:01,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329115041] [2023-02-15 14:17:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-02-15 14:17:01,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668316454] [2023-02-15 14:17:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:01,304 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:01,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:01,304 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:01,304 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:01,305 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:17:01,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:01,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:01,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2023-02-15 14:17:01,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:01,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:01,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,323 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,324 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:01,367 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:17:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,368 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) [2023-02-15 14:17:01,371 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 [2023-02-15 14:17:01,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:01,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:01,390 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:17:01,390 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: [] [2023-02-15 14:17:01,393 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 [2023-02-15 14:17:01,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,397 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) [2023-02-15 14:17:01,399 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 [2023-02-15 14:17:01,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:01,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:01,426 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 [2023-02-15 14:17:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,428 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) [2023-02-15 14:17:01,429 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 [2023-02-15 14:17:01,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:01,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:01,454 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:17:01,458 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 [2023-02-15 14:17:01,458 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:01,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:01,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:01,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:01,458 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:17:01,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:01,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:01,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2023-02-15 14:17:01,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:01,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:01,460 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:01,515 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:01,515 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:17:01,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,517 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) [2023-02-15 14:17:01,522 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 [2023-02-15 14:17:01,522 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 [2023-02-15 14:17:01,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:01,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:01,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:01,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:01,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:01,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:01,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:17:01,542 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 [2023-02-15 14:17:01,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,543 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) [2023-02-15 14:17:01,545 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 [2023-02-15 14:17:01,547 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 [2023-02-15 14:17:01,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:01,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:01,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:01,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:01,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:01,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:01,574 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:17:01,581 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-15 14:17:01,581 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-02-15 14:17:01,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:01,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,597 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) [2023-02-15 14:17:01,633 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 [2023-02-15 14:17:01,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:17:01,666 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-15 14:17:01,666 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:17:01,666 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-15 14:17:01,696 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 [2023-02-15 14:17:01,700 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-15 14:17:01,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:17:01,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:17:01,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:01,731 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:17:01,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:01,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2023-02-15 14:17:01,749 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 [2023-02-15 14:17:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:01,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-15 14:17:01,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 14:17:01,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 14:17:01,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 14:17:01,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:01,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2023-02-15 14:17:01,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:01,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2023-02-15 14:17:01,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-15 14:17:01,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-15 14:17:01,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-02-15 14:17:01,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:17:01,753 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-15 14:17:01,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-02-15 14:17:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2023-02-15 14:17:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:17:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-02-15 14:17:01,754 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-15 14:17:01,754 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-15 14:17:01,754 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 14:17:01,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-02-15 14:17:01,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:01,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:01,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:01,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-02-15 14:17:01,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:01,755 INFO L748 eck$LassoCheckResult]: Stem: 140#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 138#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 136#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 137#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 139#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 135#L12-2 [2023-02-15 14:17:01,756 INFO L750 eck$LassoCheckResult]: Loop: 135#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 135#L12-2 [2023-02-15 14:17:01,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,756 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2023-02-15 14:17:01,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101940037] [2023-02-15 14:17:01,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:01,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-02-15 14:17:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015535662] [2023-02-15 14:17:01,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:01,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:01,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:01,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2023-02-15 14:17:01,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:01,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199801653] [2023-02-15 14:17:01,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-15 14:17:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:17:01,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199801653] [2023-02-15 14:17:01,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199801653] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:17:01,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119562083] [2023-02-15 14:17:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:01,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:17:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:01,881 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 [2023-02-15 14:17:01,882 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:17:01,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 14:17:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:01,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:17:01,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:01,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:17:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:01,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119562083] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:17:01,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:17:01,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 14:17:01,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769023314] [2023-02-15 14:17:01,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:17:02,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:17:02,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 14:17:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:17:02,007 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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) [2023-02-15 14:17:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:17:02,075 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2023-02-15 14:17:02,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2023-02-15 14:17:02,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:02,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 11 states and 13 transitions. [2023-02-15 14:17:02,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 14:17:02,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 14:17:02,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-02-15 14:17:02,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:17:02,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-02-15 14:17:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-02-15 14:17:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2023-02-15 14:17:02,078 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) [2023-02-15 14:17:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-02-15 14:17:02,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-02-15 14:17:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 14:17:02,079 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-02-15 14:17:02,079 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 14:17:02,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2023-02-15 14:17:02,080 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:17:02,080 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:17:02,080 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:17:02,080 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2023-02-15 14:17:02,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:17:02,080 INFO L748 eck$LassoCheckResult]: Stem: 230#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 231#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_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 227#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 225#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 226#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 232#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 229#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 228#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 224#L12-2 [2023-02-15 14:17:02,080 INFO L750 eck$LassoCheckResult]: Loop: 224#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 224#L12-2 [2023-02-15 14:17:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 301557853, now seen corresponding path program 2 times [2023-02-15 14:17:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:02,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607028353] [2023-02-15 14:17:02,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:02,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:02,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 3 times [2023-02-15 14:17:02,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:02,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994113159] [2023-02-15 14:17:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 758358871, now seen corresponding path program 3 times [2023-02-15 14:17:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:17:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238508572] [2023-02-15 14:17:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:17:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:17:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:17:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:17:02,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:17:02,177 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:02,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:02,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:02,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:02,178 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:17:02,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:02,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:02,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2023-02-15 14:17:02,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:02,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:02,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,194 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:02,245 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:17:02,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:02,246 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) [2023-02-15 14:17:02,265 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 [2023-02-15 14:17:02,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:17:02,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:02,316 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 [2023-02-15 14:17:02,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:02,317 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) [2023-02-15 14:17:02,319 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 [2023-02-15 14:17:02,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:17:02,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:17:02,349 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:17:02,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:02,371 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:17:02,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:17:02,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:17:02,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:17:02,371 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:17:02,371 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:17:02,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:17:02,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2023-02-15 14:17:02,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:17:02,372 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:17:02,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,388 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:17:02,451 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:17:02,451 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:17:02,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:02,452 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) [2023-02-15 14:17:02,477 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 [2023-02-15 14:17:02,478 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 [2023-02-15 14:17:02,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:17:02,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:17:02,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:17:02,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:17:02,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:17:02,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:17:02,504 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:17:02,514 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-15 14:17:02,514 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-15 14:17:02,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:17:02,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:17:02,521 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) [2023-02-15 14:17:02,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:17:02,542 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 [2023-02-15 14:17:02,552 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-15 14:17:02,552 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:17:02,552 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-15 14:17:02,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:02,558 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-15 14:17:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,590 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:02,591 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:17:02,591 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 16 states and 20 transitions. Complement of second has 5 states. [2023-02-15 14:17:02,607 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 [2023-02-15 14:17:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-15 14:17:02,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2023-02-15 14:17:02,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:02,608 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 14:17:02,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,638 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:02,639 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:17:02,639 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,654 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 16 states and 20 transitions. Complement of second has 5 states. [2023-02-15 14:17:02,654 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 [2023-02-15 14:17:02,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-02-15 14:17:02,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2023-02-15 14:17:02,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:02,655 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 14:17:02,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:17:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:17:02,683 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:17:02,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:17:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:17:02,684 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:17:02,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,711 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 12 states and 14 transitions. Complement of second has 4 states. [2023-02-15 14:17:02,711 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 [2023-02-15 14:17:02,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-02-15 14:17:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-02-15 14:17:02,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2023-02-15 14:17:02,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:02,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 1 letters. [2023-02-15 14:17:02,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:02,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-15 14:17:02,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:17:02,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-02-15 14:17:02,713 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:17:02,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-02-15 14:17:02,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:17:02,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:17:02,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:17:02,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:17:02,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:02,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:02,714 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:17:02,714 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-15 14:17:02,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:17:02,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:17:02,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:17:02,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:17:02 BoogieIcfgContainer [2023-02-15 14:17:02,719 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:17:02,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:17:02,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:17:02,720 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:17:02,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:17:00" (3/4) ... [2023-02-15 14:17:02,722 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:17:02,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:17:02,722 INFO L158 Benchmark]: Toolchain (without parser) took 3051.03ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 64.5MB in the beginning and 75.3MB in the end (delta: -10.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-02-15 14:17:02,723 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:02,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.13ms. Allocated memory is still 165.7MB. Free memory was 136.5MB in the beginning and 128.5MB in the end (delta: 8.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-02-15 14:17:02,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.54ms. Allocated memory is still 165.7MB. Free memory was 128.5MB in the beginning and 127.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:17:02,727 INFO L158 Benchmark]: Boogie Preprocessor took 12.47ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 126.4MB in the end (delta: 905.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:02,727 INFO L158 Benchmark]: RCFGBuilder took 218.31ms. Allocated memory is still 165.7MB. Free memory was 126.4MB in the beginning and 117.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:17:02,727 INFO L158 Benchmark]: BuchiAutomizer took 2622.60ms. Allocated memory is still 165.7MB. Free memory was 117.7MB in the beginning and 75.3MB in the end (delta: 42.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2023-02-15 14:17:02,727 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 165.7MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:17:02,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.13ms. Allocated memory is still 165.7MB. Free memory was 136.5MB in the beginning and 128.5MB in the end (delta: 8.0MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.54ms. Allocated memory is still 165.7MB. Free memory was 128.5MB in the beginning and 127.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.47ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 126.4MB in the end (delta: 905.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 218.31ms. Allocated memory is still 165.7MB. Free memory was 126.4MB in the beginning and 117.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2622.60ms. Allocated memory is still 165.7MB. Free memory was 117.7MB in the beginning and 75.3MB in the end (delta: 42.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 165.7MB. Free memory is still 75.3MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 31 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf100 smp100 dnf93 smp100 tf102 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 14:17:02,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:02,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 14:17:03,140 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