./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/2Nested-1.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/2Nested-1.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 98e3578cd96fe8b8eee528450509f182c2f5e45fbe2813a1c7e5d95c43606358 --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:05:18,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:05:18,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:05:18,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:05:18,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:05:18,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:05:18,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:05:18,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:05:18,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:05:18,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:05:18,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:05:18,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:05:18,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:05:18,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:05:18,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:05:18,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:05:18,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:05:18,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:05:18,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:05:18,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:05:18,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:05:18,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:05:18,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:05:18,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:05:18,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:05:18,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:05:18,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:05:18,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:05:18,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:05:18,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:05:18,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:05:18,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:05:18,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:05:18,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:05:18,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:05:18,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:05:18,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:05:18,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:05:18,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:05:18,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:05:18,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:05:18,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:05:18,241 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:05:18,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:05:18,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:05:18,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:05:18,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:05:18,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:05:18,243 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:05:18,243 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:05:18,243 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:05:18,243 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:05:18,244 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:05:18,244 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:05:18,244 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:05:18,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:05:18,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:05:18,245 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:05:18,246 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:05:18,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:05:18,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:05:18,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:05:18,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:05:18,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:05:18,247 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:05:18,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98e3578cd96fe8b8eee528450509f182c2f5e45fbe2813a1c7e5d95c43606358 [2023-02-14 03:05:18,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:05:18,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:05:18,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:05:18,464 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:05:18,464 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:05:18,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/2Nested-1.c [2023-02-14 03:05:19,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:05:19,591 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:05:19,591 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/2Nested-1.c [2023-02-14 03:05:19,595 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc47119b1/8cf1d034818e4e56bc97eafadc43a66d/FLAGf1f6295e5 [2023-02-14 03:05:19,604 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc47119b1/8cf1d034818e4e56bc97eafadc43a66d [2023-02-14 03:05:19,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:05:19,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:05:19,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:05:19,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:05:19,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:05:19,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c567d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19, skipping insertion in model container [2023-02-14 03:05:19,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:05:19,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:05:19,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:05:19,704 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:05:19,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:05:19,724 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:05:19,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19 WrapperNode [2023-02-14 03:05:19,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:05:19,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:05:19,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:05:19,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:05:19,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,742 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-14 03:05:19,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:05:19,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:05:19,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:05:19,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:05:19,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,752 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:05:19,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:05:19,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:05:19,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:05:19,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (1/1) ... [2023-02-14 03:05:19,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:19,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:19,776 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 03:05:19,778 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 03:05:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:05:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:05:19,848 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:05:19,850 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:05:19,930 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:05:19,935 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:05:19,935 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 03:05:19,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:19 BoogieIcfgContainer [2023-02-14 03:05:19,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:05:19,938 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:05:19,938 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:05:19,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:05:19,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:19,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:05:19" (1/3) ... [2023-02-14 03:05:19,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@250a3ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:05:19, skipping insertion in model container [2023-02-14 03:05:19,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:19,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:05:19" (2/3) ... [2023-02-14 03:05:19,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@250a3ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:05:19, skipping insertion in model container [2023-02-14 03:05:19,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:05:19,943 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:19" (3/3) ... [2023-02-14 03:05:19,944 INFO L332 chiAutomizerObserver]: Analyzing ICFG 2Nested-1.c [2023-02-14 03:05:20,025 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:05:20,026 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:05:20,026 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:05:20,026 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:05:20,026 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:05:20,026 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:05:20,026 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:05:20,026 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:05:20,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:20,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:05:20,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:05:20,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:05:20,045 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 03:05:20,045 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:05:20,045 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:05:20,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:20,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-14 03:05:20,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:05:20,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:05:20,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 03:05:20,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 03:05:20,052 INFO L748 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L21true assume !!(main_~x~0#1 <= 65534); 3#L22true assume !!(main_~y~0#1 <= 65534); 10#L24true assume !!(main_~y~0#1 >= -65534); 4#L25-2true [2023-02-14 03:05:20,052 INFO L750 eck$LassoCheckResult]: Loop: 4#L25-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 - 1; 4#L25-2true [2023-02-14 03:05:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2023-02-14 03:05:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:20,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219433181] [2023-02-14 03:05:20,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:20,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:20,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2023-02-14 03:05:20,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:20,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107063286] [2023-02-14 03:05:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:20,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,171 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:20,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2023-02-14 03:05:20,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:05:20,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690553421] [2023-02-14 03:05:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:05:20,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:05:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:05:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:05:20,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:05:20,273 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:05:20,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:05:20,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:05:20,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:05:20,274 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:05:20,274 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,274 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:05:20,274 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:05:20,274 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2023-02-14 03:05:20,275 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:05:20,275 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:05:20,286 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 03:05:20,293 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 03:05:20,297 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 03:05:20,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:05:20,345 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:05:20,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,349 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 03:05:20,350 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 03:05:20,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:20,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:20,377 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:05:20,377 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 03:05:20,380 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 03:05:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,382 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 03:05:20,383 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 03:05:20,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:20,386 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:20,404 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:05:20,404 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 03:05:20,409 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 03:05:20,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,410 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 03:05:20,413 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 03:05:20,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:05:20,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:20,436 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 03:05:20,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,438 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 03:05:20,439 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 03:05:20,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:05:20,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:05:20,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:05:20,522 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 03:05:20,522 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:05:20,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:05:20,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:05:20,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:05:20,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:05:20,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:05:20,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:05:20,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: 2Nested-1.c_Iteration1_Loop [2023-02-14 03:05:20,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:05:20,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:05:20,525 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 03:05:20,529 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 03:05:20,532 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 03:05:20,579 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:05:20,582 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:05:20,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,584 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 03:05:20,588 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 03:05:20,589 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 03:05:20,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:20,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:05:20,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:05:20,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:20,631 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 03:05:20,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,633 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 03:05:20,635 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 03:05:20,636 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 03:05:20,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:20,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:05:20,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:05:20,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:20,668 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 03:05:20,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,670 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 03:05:20,670 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 03:05:20,674 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 03:05:20,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:05:20,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:05:20,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:05:20,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:05:20,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:20,696 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 03:05:20,697 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-02-14 03:05:20,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,699 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 03:05:20,700 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 03:05:20,702 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 03:05:20,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,709 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:20,711 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-14 03:05:20,712 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-14 03:05:20,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:20,732 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 03:05:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,734 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 03:05:20,737 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 03:05:20,738 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 03:05:20,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,746 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:20,748 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2023-02-14 03:05:20,748 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2023-02-14 03:05:20,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:05:20,765 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 03:05:20,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,767 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 03:05:20,770 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 03:05:20,770 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 03:05:20,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:05:20,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:05:20,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:05:20,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:05:20,777 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-02-14 03:05:20,784 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-02-14 03:05:20,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:05:20,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:05:20,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 03:05:20,811 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 03:05:20,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:05:20,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:05:20,861 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 03:05:20,864 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 03:05:20,866 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:05:20,866 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:05:20,866 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:05:20,866 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-14 03:05:20,872 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 03:05:20,876 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:05:20,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:05:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:05:20,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:05:20,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:05:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:05:20,940 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 03:05:20,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:05:20,941 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 03:05:20,964 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 03:05:20,966 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:20,989 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 27 transitions. Complement of second has 5 states. [2023-02-14 03:05:20,991 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 03:05:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:05:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-02-14 03:05:20,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-14 03:05:20,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:20,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-14 03:05:20,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:20,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:05:20,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:05:20,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2023-02-14 03:05:20,999 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:05:21,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-02-14 03:05:21,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:05:21,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:05:21,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:05:21,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:05:21,002 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:21,002 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:21,002 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:05:21,002 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:05:21,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:05:21,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:05:21,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:05:21,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:05:21 BoogieIcfgContainer [2023-02-14 03:05:21,007 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:05:21,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:05:21,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:05:21,008 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:05:21,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:05:19" (3/4) ... [2023-02-14 03:05:21,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:05:21,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:05:21,011 INFO L158 Benchmark]: Toolchain (without parser) took 1403.85ms. Allocated memory is still 119.5MB. Free memory was 82.4MB in the beginning and 57.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-02-14 03:05:21,011 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 90.2MB in the beginning and 90.1MB in the end (delta: 112.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:21,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.83ms. Allocated memory is still 119.5MB. Free memory was 82.4MB in the beginning and 73.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:05:21,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.87ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 72.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:05:21,012 INFO L158 Benchmark]: Boogie Preprocessor took 9.85ms. Allocated memory is still 119.5MB. Free memory was 72.0MB in the beginning and 70.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:21,012 INFO L158 Benchmark]: RCFGBuilder took 183.54ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 62.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:05:21,012 INFO L158 Benchmark]: BuchiAutomizer took 1069.56ms. Allocated memory is still 119.5MB. Free memory was 62.4MB in the beginning and 57.8MB in the end (delta: 4.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-02-14 03:05:21,013 INFO L158 Benchmark]: Witness Printer took 2.57ms. Allocated memory is still 119.5MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:05:21,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 90.2MB in the beginning and 90.1MB in the end (delta: 112.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 117.83ms. Allocated memory is still 119.5MB. Free memory was 82.4MB in the beginning and 73.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.87ms. Allocated memory is still 119.5MB. Free memory was 73.3MB in the beginning and 72.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 9.85ms. Allocated memory is still 119.5MB. Free memory was 72.0MB in the beginning and 70.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 183.54ms. Allocated memory is still 119.5MB. Free memory was 70.8MB in the beginning and 62.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1069.56ms. Allocated memory is still 119.5MB. Free memory was 62.4MB in the beginning and 57.8MB in the end (delta: 4.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. Allocated memory is still 119.5MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 2 * y + 1 > 0 then 1 else 0), (if 2 * y + 1 > 0 then 2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 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, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s 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 03:05:21,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-14 03:05:21,230 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