./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Benghazi.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 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:05:18,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:05:18,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:05:19,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:05:19,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:05:19,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:05:19,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:05:19,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:05:19,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:05:19,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:05:19,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:05:19,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:05:19,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:05:19,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:05:19,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:05:19,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:05:19,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:05:19,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:05:19,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:05:19,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:05:19,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:05:19,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:05:19,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:05:19,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:05:19,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:05:19,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:05:19,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:05:19,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:05:19,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:05:19,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:05:19,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:05:19,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:05:19,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:05:19,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:05:19,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:05:19,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:05:19,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:05:19,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:05:19,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:05:19,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:05:19,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:05:19,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:05:19,081 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:05:19,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:05:19,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:05:19,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:05:19,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:05:19,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:05:19,084 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:05:19,084 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:05:19,084 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:05:19,084 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:05:19,085 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:05:19,085 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:05:19,085 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:05:19,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:05:19,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:05:19,087 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:05:19,087 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:05:19,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:05:19,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:05:19,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:05:19,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:05:19,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:05:19,089 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:05:19,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2023-02-14 03:05:19,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:05:19,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:05:19,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:05:19,322 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:05:19,322 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:05:19,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2023-02-14 03:05:20,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:05:20,731 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:05:20,731 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2023-02-14 03:05:20,736 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40aeba42f/408168758e4244aab57f98be6c80d617/FLAG21f63109c [2023-02-14 03:05:20,751 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40aeba42f/408168758e4244aab57f98be6c80d617 [2023-02-14 03:05:20,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:05:20,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:05:20,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:05:20,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:05:20,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:05:20,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5453731f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20, skipping insertion in model container [2023-02-14 03:05:20,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:05:20,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:05:20,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:05:20,881 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:05:20,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:05:20,900 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:05:20,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20 WrapperNode [2023-02-14 03:05:20,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:05:20,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:05:20,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:05:20,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:05:20,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,923 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-14 03:05:20,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:05:20,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:05:20,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:05:20,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:05:20,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:05:20,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:05:20,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:05:20,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:05:20,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (1/1) ... [2023-02-14 03:05:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:20,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-14 03:05:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:05:20,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:05:21,046 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:05:21,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:05:21,103 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:05:21,107 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:05:21,107 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 03:05:21,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:21 BoogieIcfgContainer [2023-02-14 03:05:21,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:05:21,110 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:05:21,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:05:21,113 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:05:21,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:21,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:05:20" (1/3) ... [2023-02-14 03:05:21,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4416e476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:05:21, skipping insertion in model container [2023-02-14 03:05:21,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:21,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:20" (2/3) ... [2023-02-14 03:05:21,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4416e476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:05:21, skipping insertion in model container [2023-02-14 03:05:21,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:21,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:21" (3/3) ... [2023-02-14 03:05:21,118 INFO L332 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2023-02-14 03:05:21,173 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:05:21,173 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:05:21,174 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:05:21,174 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:05:21,174 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:05:21,174 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:05:21,174 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:05:21,174 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:05:21,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:21,194 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:05:21,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:05:21,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:05:21,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:05:21,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:05:21,198 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:05:21,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:21,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:05:21,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:05:21,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:05:21,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:05:21,201 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:05:21,209 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;main_~d1~0#1 := 73;main_~d2~0#1 := 74;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L22-2true [2023-02-14 03:05:21,210 INFO L750 eck$LassoCheckResult]: Loop: 7#L22-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 7#L22-2true [2023-02-14 03:05:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 03:05:21,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:21,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427025470] [2023-02-14 03:05:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:21,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-14 03:05:21,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:21,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992758921] [2023-02-14 03:05:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:21,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-14 03:05:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:21,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567192422] [2023-02-14 03:05:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:21,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:21,482 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:05:21,483 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:05:21,483 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:05:21,483 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:05:21,483 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:05:21,483 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:21,483 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:05:21,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:05:21,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2023-02-14 03:05:21,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:05:21,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:05:21,546 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:21,577 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:21,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:21,664 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:05:21,664 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:05:21,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:21,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:21,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-14 03:05:21,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:21,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:21,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:05:21,712 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:05:21,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-14 03:05:21,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:21,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:21,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:21,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-14 03:05:21,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:21,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:21,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:05:21,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:05:21,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:21,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:21,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:21,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:21,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-14 03:05:21,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:21,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:21,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:21,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:21,782 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:21,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-14 03:05:21,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:05:21,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:24,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:05:24,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:24,836 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:05:24,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:05:24,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:05:24,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:05:24,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:05:24,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:24,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:05:24,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:05:24,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2023-02-14 03:05:24,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:05:24,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:05:24,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:24,841 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:24,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:05:24,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:05:24,913 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:05:24,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:24,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:24,939 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:24,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-14 03:05:24,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:24,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:24,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:24,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:24,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:24,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:05:24,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:05:24,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-14 03:05:25,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:25,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:05:25,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:05:25,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,085 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-14 03:05:25,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:05:25,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:25,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:05:25,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:05:25,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,124 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-02-14 03:05:25,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,125 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-14 03:05:25,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,137 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:25,139 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-14 03:05:25,140 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-14 03:05:25,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-14 03:05:25,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,186 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:25,198 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-14 03:05:25,198 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-14 03:05:25,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-14 03:05:25,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:05:25,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,239 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:25,245 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-02-14 03:05:25,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:05:25,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,284 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-02-14 03:05:25,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-14 03:05:25,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,298 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-14 03:05:25,302 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-02-14 03:05:25,302 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-02-14 03:05:25,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-14 03:05:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,389 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-14 03:05:25,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,402 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-14 03:05:25,405 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-02-14 03:05:25,405 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-02-14 03:05:25,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:25,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:25,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,465 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:05:25,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-14 03:05:25,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:05:25,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:25,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:05:25,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:25,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:25,481 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-02-14 03:05:25,484 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 03:05:25,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:05:25,501 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:05:25,530 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:05:25,530 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 03:05:25,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:25,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:25,545 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) [2023-02-14 03:05:25,561 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 [2023-02-14 03:05:25,562 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:05:25,562 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:05:25,562 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:05:25,563 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0#1 - 1*ULTIMATE.start_main_~d1~0#1 f1 = 2*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~d1~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-14 03:05:25,580 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 [2023-02-14 03:05:25,586 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:05:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:05:25,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:05:25,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:05:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:05:25,640 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-14 03:05:25,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:05:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:05:25,668 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 03:05:25,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:25,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2023-02-14 03:05:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:05:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-14 03:05:25,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-14 03:05:25,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:25,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-14 03:05:25,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:25,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 03:05:25,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:25,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-14 03:05:25,711 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:05:25,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2023-02-14 03:05:25,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:05:25,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:05:25,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:05:25,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:05:25,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:25,715 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:25,715 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:25,716 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:05:25,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:05:25,716 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:05:25,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:05:25,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:05:25 BoogieIcfgContainer [2023-02-14 03:05:25,722 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:05:25,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:05:25,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:05:25,723 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:05:25,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:21" (3/4) ... [2023-02-14 03:05:25,726 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:05:25,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:05:25,726 INFO L158 Benchmark]: Toolchain (without parser) took 4971.15ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 67.6MB in the end (delta: 30.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-02-14 03:05:25,727 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:25,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.78ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 88.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:05:25,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.02ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:05:25,728 INFO L158 Benchmark]: Boogie Preprocessor took 15.46ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:25,729 INFO L158 Benchmark]: RCFGBuilder took 168.06ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 78.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:05:25,729 INFO L158 Benchmark]: BuchiAutomizer took 4612.16ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 68.2MB in the end (delta: 9.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-02-14 03:05:25,729 INFO L158 Benchmark]: Witness Printer took 3.27ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 555.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:25,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.78ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 88.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.02ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.46ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 86.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 168.06ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 78.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4612.16ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 68.2MB in the end (delta: 9.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 3.27ms. Allocated memory is still 142.6MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 555.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 03:05:25,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-14 03:05:25,946 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