./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/recursive-simple/id_i25_o25-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:28:16,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:28:16,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:28:16,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:28:16,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:28:16,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:28:16,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:28:16,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:28:16,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:28:16,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:28:16,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:28:16,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:28:16,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:28:16,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:28:16,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:28:16,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:28:16,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:28:16,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:28:16,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:28:16,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:28:16,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:28:16,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:28:16,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:28:16,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:28:16,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:28:16,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:28:16,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:28:16,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:28:16,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:28:16,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:28:16,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:28:16,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:28:16,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:28:16,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:28:16,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:28:16,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:28:16,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:28:16,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:28:16,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:28:16,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:28:16,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:28:16,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:28:16,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:28:16,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:28:16,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:28:16,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:28:16,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:28:16,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:28:16,386 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:28:16,386 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:28:16,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:28:16,387 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:28:16,387 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:28:16,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:28:16,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:28:16,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:28:16,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:28:16,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:28:16,389 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:28:16,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:28:16,389 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:28:16,390 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:28:16,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:28:16,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:28:16,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:28:16,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:28:16,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:28:16,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:28:16,392 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:28:16,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 [2021-12-22 20:28:16,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:28:16,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:28:16,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:28:16,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:28:16,581 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:28:16,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-12-22 20:28:16,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb5856d/d011f4b30fc5471c8be74a836764b06b/FLAGc54fdbe9d [2021-12-22 20:28:16,945 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:28:16,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-12-22 20:28:16,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb5856d/d011f4b30fc5471c8be74a836764b06b/FLAGc54fdbe9d [2021-12-22 20:28:16,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ecb5856d/d011f4b30fc5471c8be74a836764b06b [2021-12-22 20:28:16,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:28:16,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:28:16,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:28:16,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:28:16,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:28:16,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:28:16" (1/1) ... [2021-12-22 20:28:16,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a122022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:16, skipping insertion in model container [2021-12-22 20:28:16,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:28:16" (1/1) ... [2021-12-22 20:28:16,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:28:16,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:28:17,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c[454,467] [2021-12-22 20:28:17,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:28:17,146 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:28:17,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c[454,467] [2021-12-22 20:28:17,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:28:17,169 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:28:17,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17 WrapperNode [2021-12-22 20:28:17,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:28:17,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:28:17,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:28:17,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:28:17,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,192 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-22 20:28:17,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:28:17,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:28:17,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:28:17,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:28:17,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:28:17,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:28:17,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:28:17,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:28:17,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (1/1) ... [2021-12-22 20:28:17,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:17,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:17,242 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) [2021-12-22 20:28:17,260 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 [2021-12-22 20:28:17,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:28:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:28:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:28:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:28:17,276 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-12-22 20:28:17,276 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-12-22 20:28:17,319 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:28:17,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:28:17,394 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:28:17,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:28:17,398 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 20:28:17,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:28:17 BoogieIcfgContainer [2021-12-22 20:28:17,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:28:17,400 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:28:17,400 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:28:17,402 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:28:17,403 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:28:17,403 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:28:16" (1/3) ... [2021-12-22 20:28:17,403 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60aab053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:28:17, skipping insertion in model container [2021-12-22 20:28:17,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:28:17,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:28:17" (2/3) ... [2021-12-22 20:28:17,404 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60aab053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:28:17, skipping insertion in model container [2021-12-22 20:28:17,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:28:17,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:28:17" (3/3) ... [2021-12-22 20:28:17,405 INFO L388 chiAutomizerObserver]: Analyzing ICFG id_i25_o25-1.c [2021-12-22 20:28:17,455 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:28:17,455 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:28:17,455 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:28:17,455 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:28:17,455 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:28:17,455 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:28:17,456 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:28:17,456 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:28:17,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 20:28:17,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 20:28:17,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:28:17,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:28:17,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-22 20:28:17,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 20:28:17,500 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:28:17,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 20:28:17,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-22 20:28:17,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:28:17,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:28:17,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-22 20:28:17,516 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-22 20:28:17,520 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~input~0#1, main_~result~0#1;main_~input~0#1 := 25; 14#L13true call main_#t~ret5#1 := id(main_~input~0#1);< 12#idENTRYtrue [2021-12-22 20:28:17,521 INFO L793 eck$LassoCheckResult]: Loop: 12#idENTRYtrue ~x := #in~x; 8#L7true assume !(0 == ~x); 7#L8true call #t~ret4 := id(~x - 1);< 12#idENTRYtrue [2021-12-22 20:28:17,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:28:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-12-22 20:28:17,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:28:17,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301841459] [2021-12-22 20:28:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:28:17,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:28:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,604 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:28:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:28:17,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:28:17,638 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-12-22 20:28:17,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:28:17,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536963404] [2021-12-22 20:28:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:28:17,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:28:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,646 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:28:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,653 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:28:17,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:28:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-12-22 20:28:17,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:28:17,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297003801] [2021-12-22 20:28:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:28:17,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:28:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,674 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:28:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:28:17,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:28:17,790 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:28:17,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:28:17,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:28:17,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:28:17,791 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 20:28:17,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:17,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:28:17,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:28:17,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Loop [2021-12-22 20:28:17,792 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:28:17,792 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:28:17,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:17,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:17,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:17,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:17,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:28:17,856 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 20:28:17,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:17,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:17,860 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) [2021-12-22 20:28:17,862 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 [2021-12-22 20:28:17,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:28:17,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:28:17,890 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:28:17,890 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:28:17,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 20:28:17,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:17,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:17,910 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) [2021-12-22 20:28:17,911 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 [2021-12-22 20:28:17,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:28:17,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:28:17,956 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 [2021-12-22 20:28:17,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:17,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:17,958 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) [2021-12-22 20:28:17,959 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 [2021-12-22 20:28:17,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:28:17,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:28:17,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:28:17,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-5} Honda state: {id_#in~x=-5} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 10, 8] Nus: [0, 0] [2021-12-22 20:28:18,006 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 [2021-12-22 20:28:18,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:18,007 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) [2021-12-22 20:28:18,009 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 [2021-12-22 20:28:18,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:28:18,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:28:18,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:28:18,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:28:18,043 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 [2021-12-22 20:28:18,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:18,045 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) [2021-12-22 20:28:18,045 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 [2021-12-22 20:28:18,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:28:18,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:28:18,058 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:28:18,058 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret4=0} Honda state: {id_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:28:18,077 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 [2021-12-22 20:28:18,290 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:28:18,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:28:18,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:28:18,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:28:18,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:28:18,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:28:18,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:28:18,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Lasso [2021-12-22 20:28:18,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:28:18,291 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:28:18,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:28:18,463 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:28:18,466 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:28:18,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:18,468 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) [2021-12-22 20:28:18,469 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 [2021-12-22 20:28:18,471 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 [2021-12-22 20:28:18,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:28:18,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:28:18,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:28:18,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:28:18,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:28:18,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:28:18,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:28:18,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:28:18,512 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 [2021-12-22 20:28:18,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:18,515 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) [2021-12-22 20:28:18,517 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 [2021-12-22 20:28:18,518 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 [2021-12-22 20:28:18,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:28:18,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:28:18,525 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-22 20:28:18,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:28:18,537 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-22 20:28:18,538 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-22 20:28:18,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:28:18,590 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-22 20:28:18,590 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-22 20:28:18,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:28:18,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:28:18,593 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) [2021-12-22 20:28:18,597 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 [2021-12-22 20:28:18,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:28:18,628 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-22 20:28:18,629 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:28:18,629 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2021-12-22 20:28:18,661 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 [2021-12-22 20:28:18,666 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-22 20:28:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:28:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:28:18,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 20:28:18,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:28:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:28:18,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 20:28:18,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:28:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:28:18,820 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-22 20:28:18,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:28:18,889 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 13 states. [2021-12-22 20:28:18,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 20:28:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:28:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-12-22 20:28:18,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-22 20:28:18,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:28:18,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-22 20:28:18,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:28:18,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-22 20:28:18,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:28:18,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-12-22 20:28:18,898 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:28:18,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-12-22 20:28:18,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 20:28:18,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 20:28:18,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 20:28:18,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:28:18,900 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:28:18,900 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:28:18,900 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:28:18,900 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:28:18,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 20:28:18,901 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:28:18,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 20:28:18,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:28:18 BoogieIcfgContainer [2021-12-22 20:28:18,905 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:28:18,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:28:18,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:28:18,906 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:28:18,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:28:17" (3/4) ... [2021-12-22 20:28:18,908 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 20:28:18,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:28:18,909 INFO L158 Benchmark]: Toolchain (without parser) took 1941.48ms. Allocated memory is still 140.5MB. Free memory was 110.7MB in the beginning and 79.1MB in the end (delta: 31.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,909 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 50.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.14ms. Allocated memory is still 140.5MB. Free memory was 110.2MB in the beginning and 116.6MB in the end (delta: -6.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.77ms. Allocated memory is still 140.5MB. Free memory was 116.6MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,910 INFO L158 Benchmark]: Boogie Preprocessor took 14.82ms. Allocated memory is still 140.5MB. Free memory was 115.4MB in the beginning and 114.5MB in the end (delta: 893.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:28:18,911 INFO L158 Benchmark]: RCFGBuilder took 190.83ms. Allocated memory is still 140.5MB. Free memory was 114.5MB in the beginning and 106.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,911 INFO L158 Benchmark]: BuchiAutomizer took 1505.30ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 79.1MB in the end (delta: 26.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-12-22 20:28:18,911 INFO L158 Benchmark]: Witness Printer took 2.54ms. Allocated memory is still 140.5MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:28:18,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 44.2MB in the end (delta: 50.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.14ms. Allocated memory is still 140.5MB. Free memory was 110.2MB in the beginning and 116.6MB in the end (delta: -6.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.77ms. Allocated memory is still 140.5MB. Free memory was 116.6MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.82ms. Allocated memory is still 140.5MB. Free memory was 115.4MB in the beginning and 114.5MB in the end (delta: 893.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 190.83ms. Allocated memory is still 140.5MB. Free memory was 114.5MB in the beginning and 106.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1505.30ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 79.1MB in the end (delta: 26.6MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 2.54ms. Allocated memory is still 140.5MB. Free memory is still 79.1MB. 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 affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital43 mio100 ax100 hnf100 lsp64 ukn84 mio100 lsp100 div100 bol100 ite100 ukn100 eq199 hnf96 smp100 dnf145 smp100 tf102 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 115ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-22 20:28:18,937 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 [2021-12-22 20:28:19,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE