./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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-numeric/rec_counter1.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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:10:02,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:10:02,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:10:02,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:10:02,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:10:02,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:10:02,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:10:02,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:10:02,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:10:02,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:10:02,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:10:02,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:10:02,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:10:02,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:10:02,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:10:02,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:10:02,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:10:02,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:10:02,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:10:02,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:10:02,740 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:10:02,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:10:02,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:10:02,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:10:02,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:10:02,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:10:02,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:10:02,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:10:02,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:10:02,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:10:02,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:10:02,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:10:02,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:10:02,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:10:02,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:10:02,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:10:02,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:10:02,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:10:02,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:10:02,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:10:02,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:10:02,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:10:02,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:10:02,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:10:02,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:10:02,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:10:02,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:10:02,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:10:02,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:10:02,792 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:10:02,793 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:10:02,793 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:10:02,793 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:10:02,793 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:10:02,793 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:10:02,793 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:10:02,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:10:02,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:10:02,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:10:02,795 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:10:02,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:10:02,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:10:02,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:10:02,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:10:02,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:10:02,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:10:02,797 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:10:02,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2022-07-13 03:10:02,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:10:02,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:10:02,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:10:02,989 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:10:02,995 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:10:02,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2022-07-13 03:10:03,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0c5c4ffa/d540509d10cc4017b60679c84fc9a59f/FLAG76dc9b468 [2022-07-13 03:10:03,336 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:10:03,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2022-07-13 03:10:03,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0c5c4ffa/d540509d10cc4017b60679c84fc9a59f/FLAG76dc9b468 [2022-07-13 03:10:03,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0c5c4ffa/d540509d10cc4017b60679c84fc9a59f [2022-07-13 03:10:03,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:10:03,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:10:03,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:10:03,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:10:03,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:10:03,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a64400a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03, skipping insertion in model container [2022-07-13 03:10:03,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:10:03,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:10:03,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:10:03,911 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:10:03,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:10:03,927 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:10:03,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03 WrapperNode [2022-07-13 03:10:03,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:10:03,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:10:03,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:10:03,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:10:03,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,943 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2022-07-13 03:10:03,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:10:03,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:10:03,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:10:03,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:10:03,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:10:03,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:10:03,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:10:03,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:10:03,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (1/1) ... [2022-07-13 03:10:03,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:03,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:03,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:03,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:10:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-07-13 03:10:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-07-13 03:10:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:10:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:10:04,027 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:10:04,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:10:04,081 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:10:04,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:10:04,086 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:10:04,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:04 BoogieIcfgContainer [2022-07-13 03:10:04,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:10:04,088 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:10:04,088 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:10:04,090 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:10:04,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:04,091 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:10:03" (1/3) ... [2022-07-13 03:10:04,091 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57269d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:10:04, skipping insertion in model container [2022-07-13 03:10:04,092 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:04,092 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:03" (2/3) ... [2022-07-13 03:10:04,092 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57269d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:10:04, skipping insertion in model container [2022-07-13 03:10:04,092 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:04,092 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:04" (3/3) ... [2022-07-13 03:10:04,093 INFO L354 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2022-07-13 03:10:04,142 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:10:04,142 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:10:04,142 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:10:04,142 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:10:04,142 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:10:04,142 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:10:04,142 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:10:04,142 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:10:04,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:04,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-13 03:10:04,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:04,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:04,164 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:10:04,165 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:10:04,165 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:10:04,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:04,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-13 03:10:04,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:04,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:04,167 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:10:04,167 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:10:04,171 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L18true assume !(main_~i~0#1 <= 0); 15#L20true call main_#t~ret3#1 := rec(main_~i~0#1);< 11#recENTRYtrue [2022-07-13 03:10:04,171 INFO L754 eck$LassoCheckResult]: Loop: 11#recENTRYtrue ~a := #in~a; 5#L5true assume !(0 == ~a); 10#L8true call #t~ret0 := rec(~a - 1);< 11#recENTRYtrue [2022-07-13 03:10:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1572139, now seen corresponding path program 1 times [2022-07-13 03:10:04,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:04,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109233732] [2022-07-13 03:10:04,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:04,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash 29949, now seen corresponding path program 1 times [2022-07-13 03:10:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:04,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935815996] [2022-07-13 03:10:04,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,278 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:04,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash -409047149, now seen corresponding path program 1 times [2022-07-13 03:10:04,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:04,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577684877] [2022-07-13 03:10:04,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,302 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:04,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:04,419 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:04,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:04,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:04,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:04,420 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:04,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:04,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:04,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2022-07-13 03:10:04,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:04,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:04,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,524 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:04,525 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:04,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:10:04,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,558 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:04,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:10:04,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,598 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-13 03:10:04,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:10:04,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,640 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,640 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:04,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,661 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:10:04,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,693 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-13 03:10:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:10:04,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-13 03:10:04,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,760 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:10:04,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:04,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:10:04,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:04,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,826 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,826 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-1} Honda state: {rec_#in~a=-1} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 3, 15] Nus: [0, 1] [2022-07-13 03:10:04,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:10:04,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,854 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,854 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:04,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-13 03:10:04,888 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:04,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:04,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:04,888 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:04,888 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:04,888 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:04,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:04,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2022-07-13 03:10:04,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:04,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:04,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:04,964 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:04,964 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:04,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:04,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:04,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:04,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:10:04,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:04,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:04,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:04,992 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,014 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:10:05,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-13 03:10:05,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,046 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:10:05,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,074 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:10:05,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,082 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,083 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1#1=0} Honda state: {ULTIMATE.start_main_~res~1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,102 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:10:05,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,118 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,118 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,141 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:10:05,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,152 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,152 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4#1=0} Honda state: {ULTIMATE.start_#t~ret4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,171 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-13 03:10:05,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,188 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,213 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:10:05,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,227 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,227 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-07-13 03:10:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,247 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:10:05,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,270 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,270 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-13 03:10:05,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,289 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:10:05,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,307 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,324 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:10:05,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:05,335 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:05,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,352 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:10:05,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:05,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,408 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:10:05,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:05,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:05,440 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:05,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,443 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:05,443 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:05,443 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:05,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:05,444 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:05,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,444 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:05,444 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:05,444 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2022-07-13 03:10:05,444 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:05,444 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:05,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:05,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:05,517 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:05,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,519 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:10:05,522 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 [2022-07-13 03:10:05,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 03:10:05,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,563 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:10:05,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-13 03:10:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,604 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:10:05,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,661 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-13 03:10:05,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-13 03:10:05,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,687 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-13 03:10:05,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:05,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,728 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-13 03:10:05,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-13 03:10:05,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,759 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-13 03:10:05,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-13 03:10:05,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,807 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-13 03:10:05,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-07-13 03:10:05,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,832 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-13 03:10:05,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:05,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:05,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:05,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:05,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:05,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-13 03:10:05,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,868 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-13 03:10:05,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:05,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:05,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:05,877 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-13 03:10:05,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:05,883 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-07-13 03:10:05,883 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-07-13 03:10:05,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:05,938 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-07-13 03:10:05,938 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-07-13 03:10:05,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:05,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:05,979 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:05,980 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:05,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-13 03:10:06,006 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-07-13 03:10:06,007 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:06,007 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2022-07-13 03:10:06,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,031 INFO L293 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-07-13 03:10:06,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:10:06,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:10:06,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:06,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-07-13 03:10:06,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:10:06,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 40 transitions. Complement of second has 13 states. [2022-07-13 03:10:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:10:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-07-13 03:10:06,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-13 03:10:06,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 03:10:06,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-13 03:10:06,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2022-07-13 03:10:06,259 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:06,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 18 states and 23 transitions. [2022-07-13 03:10:06,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-13 03:10:06,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-13 03:10:06,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-07-13 03:10:06,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:06,264 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-13 03:10:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-07-13 03:10:06,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2022-07-13 03:10:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:06,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-07-13 03:10:06,280 INFO L392 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-07-13 03:10:06,281 INFO L374 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-07-13 03:10:06,281 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:10:06,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-07-13 03:10:06,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:06,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:06,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:06,282 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:06,282 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:10:06,282 INFO L752 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 118#L18 assume !(main_~i~0#1 <= 0); 119#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 126#recENTRY ~a := #in~a; 127#L5 assume !(0 == ~a); 121#L8 call #t~ret0 := rec(~a - 1);< 125#recENTRY ~a := #in~a; 128#L5 assume 0 == ~a;#res := 0; 129#recFINAL assume true; 131#recEXIT >#35#return; 120#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 122#L10-2 [2022-07-13 03:10:06,282 INFO L754 eck$LassoCheckResult]: Loop: 122#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 122#L10-2 [2022-07-13 03:10:06,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1880555327, now seen corresponding path program 1 times [2022-07-13 03:10:06,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389929261] [2022-07-13 03:10:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,288 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:06,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,299 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2022-07-13 03:10:06,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158447452] [2022-07-13 03:10:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:06,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1832327022, now seen corresponding path program 1 times [2022-07-13 03:10:06,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093690387] [2022-07-13 03:10:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:10:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 03:10:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093690387] [2022-07-13 03:10:06,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093690387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:10:06,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:10:06,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 03:10:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037677070] [2022-07-13 03:10:06,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:10:06,391 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:06,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:06,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:06,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:06,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:06,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:06,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:06,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2022-07-13 03:10:06,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:06,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:06,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:06,407 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:06,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,408 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-13 03:10:06,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:06,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:06,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,461 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-13 03:10:06,463 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:06,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:06,487 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:06,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-07-13 03:10:06,489 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:06,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:06,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:06,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:06,490 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:06,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:06,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:06,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2022-07-13 03:10:06,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:06,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:06,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:06,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:06,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,525 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-13 03:10:06,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:06,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:06,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:06,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:06,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:06,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:06,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:06,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:06,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:06,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,574 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:06,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:06,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:06,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:06,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:06,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:06,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-13 03:10:06,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:06,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:06,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:06,602 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:06,603 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:06,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,604 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-13 03:10:06,606 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:06,606 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:06,606 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:06,606 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2022-07-13 03:10:06,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,626 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:10:06,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:06,708 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:10:06,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:06,709 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-13 03:10:06,709 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:06,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 46 states and 65 transitions. Complement of second has 12 states. [2022-07-13 03:10:06,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-07-13 03:10:06,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2022-07-13 03:10:06,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2022-07-13 03:10:06,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2022-07-13 03:10:06,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:06,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 65 transitions. [2022-07-13 03:10:06,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:06,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 24 states and 31 transitions. [2022-07-13 03:10:06,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-13 03:10:06,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-13 03:10:06,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-07-13 03:10:06,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:06,737 INFO L369 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-07-13 03:10:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-07-13 03:10:06,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2022-07-13 03:10:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:10:06,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-07-13 03:10:06,739 INFO L392 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-07-13 03:10:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:06,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 03:10:06,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 03:10:06,742 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:06,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:06,790 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-07-13 03:10:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 03:10:06,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-07-13 03:10:06,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:06,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2022-07-13 03:10:06,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-07-13 03:10:06,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-13 03:10:06,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2022-07-13 03:10:06,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:06,792 INFO L369 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-13 03:10:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2022-07-13 03:10:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-13 03:10:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:10:06,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-07-13 03:10:06,794 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-13 03:10:06,794 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-07-13 03:10:06,794 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:10:06,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2022-07-13 03:10:06,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:06,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:06,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:06,795 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:06,795 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:10:06,795 INFO L752 eck$LassoCheckResult]: Stem: 301#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 302#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~i~0#1, main_~res~1#1;main_~i~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 295#L18 assume !(main_~i~0#1 <= 0); 296#L20 call main_#t~ret3#1 := rec(main_~i~0#1);< 304#recENTRY ~a := #in~a; 305#L5 assume !(0 == ~a); 298#L8 call #t~ret0 := rec(~a - 1);< 303#recENTRY ~a := #in~a; 307#L5 assume !(0 == ~a); 299#L8 call #t~ret0 := rec(~a - 1);< 303#recENTRY ~a := #in~a; 306#L5 assume 0 == ~a;#res := 0; 310#recFINAL assume true; 313#recEXIT >#35#return; 314#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 308#L10-2 assume !(~rescopy~0 > 0); 309#L10-3 #res := 1 + ~res~0; 312#recFINAL assume true; 311#recEXIT >#35#return; 297#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 300#L10-2 [2022-07-13 03:10:06,795 INFO L754 eck$LassoCheckResult]: Loop: 300#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 300#L10-2 [2022-07-13 03:10:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash -873780632, now seen corresponding path program 1 times [2022-07-13 03:10:06,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878797816] [2022-07-13 03:10:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,813 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:06,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,821 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2022-07-13 03:10:06,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743013397] [2022-07-13 03:10:06,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,823 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:06,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1317395801, now seen corresponding path program 1 times [2022-07-13 03:10:06,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:06,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601577555] [2022-07-13 03:10:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,834 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:06,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:06,851 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:06,851 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:06,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:06,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:06,851 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:06,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:06,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:06,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2022-07-13 03:10:06,852 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:06,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:06,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,866 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:06,867 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:06,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,868 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-13 03:10:06,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:06,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:06,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,904 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-13 03:10:06,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:06,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:06,933 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:06,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-07-13 03:10:06,936 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:06,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:06,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:06,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:06,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:06,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:06,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:06,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2022-07-13 03:10:06,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:06,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:06,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:06,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:06,958 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:06,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:06,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:06,972 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:06,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-13 03:10:06,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:06,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:06,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:06,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:06,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:06,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:06,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:06,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:06,997 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:07,008 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:07,008 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:07,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:07,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:07,010 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:07,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-13 03:10:07,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:07,012 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:07,012 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:07,012 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2022-07-13 03:10:07,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-13 03:10:07,027 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:07,185 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-13 03:10:07,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,205 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2022-07-13 03:10:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:07,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-07-13 03:10:07,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2022-07-13 03:10:07,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:07,207 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:10:07,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,330 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:07,331 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-13 03:10:07,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 26 states and 30 transitions. Complement of second has 7 states. [2022-07-13 03:10:07,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-07-13 03:10:07,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 20 letters. Loop has 1 letters. [2022-07-13 03:10:07,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:07,357 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:10:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:07,507 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:10:07,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:07,508 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2022-07-13 03:10:07,509 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 23 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 33 states and 41 transitions. Complement of second has 9 states. [2022-07-13 03:10:07,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:10:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-07-13 03:10:07,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 1 letters. [2022-07-13 03:10:07,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:07,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 1 letters. [2022-07-13 03:10:07,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:07,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 20 letters. Loop has 2 letters. [2022-07-13 03:10:07,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:07,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2022-07-13 03:10:07,540 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:10:07,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-07-13 03:10:07,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:10:07,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:10:07,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:10:07,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:10:07,541 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:07,541 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:07,541 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:07,541 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:10:07,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:10:07,541 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:10:07,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:10:07,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:10:07 BoogieIcfgContainer [2022-07-13 03:10:07,547 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:10:07,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:10:07,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:10:07,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:10:07,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:04" (3/4) ... [2022-07-13 03:10:07,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:10:07,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:10:07,551 INFO L158 Benchmark]: Toolchain (without parser) took 3768.81ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 70.0MB in the beginning and 85.5MB in the end (delta: -15.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-13 03:10:07,551 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:07,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.21ms. Allocated memory is still 100.7MB. Free memory was 69.8MB in the beginning and 78.0MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:10:07,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.45ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:07,552 INFO L158 Benchmark]: Boogie Preprocessor took 9.25ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 75.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:10:07,552 INFO L158 Benchmark]: RCFGBuilder took 133.66ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 67.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:10:07,552 INFO L158 Benchmark]: BuchiAutomizer took 3459.28ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 67.1MB in the beginning and 85.5MB in the end (delta: -18.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-13 03:10:07,553 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 125.8MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:07,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.21ms. Allocated memory is still 100.7MB. Free memory was 69.8MB in the beginning and 78.0MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.45ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.25ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 75.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 133.66ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 67.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3459.28ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 67.1MB in the beginning and 85.5MB in the end (delta: -18.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 125.8MB. Free memory is still 85.5MB. 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 \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 78 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf94 smp100 dnf123 smp100 tf108 neg96 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 140ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:10:07,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE