./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:41:44,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:41:44,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:41:45,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:41:45,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:41:45,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:41:45,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:41:45,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:41:45,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:41:45,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:41:45,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:41:45,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:41:45,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:41:45,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:41:45,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:41:45,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:41:45,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:41:45,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:41:45,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:41:45,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:41:45,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:41:45,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:41:45,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:41:45,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:41:45,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:41:45,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:41:45,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:41:45,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:41:45,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:41:45,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:41:45,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:41:45,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:41:45,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:41:45,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:41:45,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:41:45,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:41:45,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:41:45,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:41:45,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:41:45,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:41:45,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:41:45,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:41:45,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:41:45,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:41:45,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:41:45,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:41:45,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:41:45,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:41:45,071 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:41:45,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:41:45,072 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:41:45,072 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:41:45,072 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:41:45,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:41:45,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:41:45,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:41:45,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:41:45,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:41:45,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:41:45,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:41:45,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:41:45,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:41:45,076 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:41:45,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 [2021-12-14 23:41:45,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:41:45,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:41:45,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:41:45,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:41:45,279 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:41:45,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-12-14 23:41:45,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dd20360/3530fe48f20b41cf8955fc995b2e5acb/FLAG65aa191a2 [2021-12-14 23:41:45,666 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:41:45,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2021-12-14 23:41:45,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dd20360/3530fe48f20b41cf8955fc995b2e5acb/FLAG65aa191a2 [2021-12-14 23:41:46,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dd20360/3530fe48f20b41cf8955fc995b2e5acb [2021-12-14 23:41:46,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:41:46,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:41:46,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:41:46,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:41:46,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:41:46,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47183975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46, skipping insertion in model container [2021-12-14 23:41:46,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:41:46,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:41:46,232 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] [2021-12-14 23:41:46,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:41:46,240 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:41:46,252 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] [2021-12-14 23:41:46,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:41:46,265 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:41:46,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46 WrapperNode [2021-12-14 23:41:46,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:41:46,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:41:46,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:41:46,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:41:46,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,288 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-14 23:41:46,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:41:46,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:41:46,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:41:46,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:41:46,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:41:46,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:41:46,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:41:46,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:41:46,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (1/1) ... [2021-12-14 23:41:46,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:46,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:46,318 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) [2021-12-14 23:41:46,325 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 [2021-12-14 23:41:46,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:41:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:41:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:41:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:41:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-12-14 23:41:46,346 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-12-14 23:41:46,382 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:41:46,383 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:41:46,431 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:41:46,435 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:41:46,435 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 23:41:46,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:46 BoogieIcfgContainer [2021-12-14 23:41:46,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:41:46,437 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:41:46,437 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:41:46,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:41:46,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:41:46,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:41:46" (1/3) ... [2021-12-14 23:41:46,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f6d04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:41:46, skipping insertion in model container [2021-12-14 23:41:46,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:41:46,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:46" (2/3) ... [2021-12-14 23:41:46,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f6d04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:41:46, skipping insertion in model container [2021-12-14 23:41:46,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:41:46,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:46" (3/3) ... [2021-12-14 23:41:46,441 INFO L388 chiAutomizerObserver]: Analyzing ICFG id_i25_o25-1.c [2021-12-14 23:41:46,469 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:41:46,469 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:41:46,469 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:41:46,469 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:41:46,469 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:41:46,469 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:41:46,470 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:41:46,470 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:41:46,479 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) [2021-12-14 23:41:46,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:41:46,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:41:46,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:41:46,496 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:41:46,496 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:41:46,496 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:41:46,496 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) [2021-12-14 23:41:46,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-14 23:41:46,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:41:46,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:41:46,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:41:46,498 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:41:46,502 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 [2021-12-14 23:41:46,502 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 [2021-12-14 23:41:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:41:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-12-14 23:41:46,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:41:46,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159080197] [2021-12-14 23:41:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:41:46,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:41:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,570 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:41:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:41:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:41:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-12-14 23:41:46,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:41:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559030677] [2021-12-14 23:41:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:41:46,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:41:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,619 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:41:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:41:46,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:41:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-12-14 23:41:46,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:41:46,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277593898] [2021-12-14 23:41:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:41:46,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:41:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,646 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:41:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:41:46,664 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:41:46,757 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:41:46,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:41:46,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:41:46,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:41:46,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-14 23:41:46,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:46,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:41:46,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:41:46,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Loop [2021-12-14 23:41:46,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:41:46,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:41:46,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:46,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:46,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:46,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:46,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:41:46,866 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-14 23:41:46,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:46,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:46,870 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) [2021-12-14 23:41:46,871 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 [2021-12-14 23:41:46,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-14 23:41:46,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:41:46,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-14 23:41:46,889 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-14 23:41:46,906 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 [2021-12-14 23:41:46,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:46,908 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) [2021-12-14 23:41:46,911 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 [2021-12-14 23:41:46,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-14 23:41:46,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:41:46,944 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 [2021-12-14 23:41:46,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:46,946 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) [2021-12-14 23:41:46,947 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 [2021-12-14 23:41:46,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-14 23:41:46,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:41:47,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-14 23:41:47,011 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] [2021-12-14 23:41:47,027 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 [2021-12-14 23:41:47,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:47,029 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) [2021-12-14 23:41:47,030 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 [2021-12-14 23:41:47,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-14 23:41:47,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:41:47,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-14 23:41:47,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-14 23:41:47,055 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 [2021-12-14 23:41:47,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:47,056 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) [2021-12-14 23:41:47,057 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 [2021-12-14 23:41:47,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-14 23:41:47,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-14 23:41:47,065 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-14 23:41:47,065 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret4=0} Honda state: {id_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-14 23:41:47,083 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 [2021-12-14 23:41:47,271 INFO L210 LassoAnalysis]: Preferences: [2021-12-14 23:41:47,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-14 23:41:47,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-14 23:41:47,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-14 23:41:47,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-14 23:41:47,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-14 23:41:47,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-14 23:41:47,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i25_o25-1.c_Iteration1_Lasso [2021-12-14 23:41:47,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-14 23:41:47,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-14 23:41:47,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-14 23:41:47,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-14 23:41:47,448 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-14 23:41:47,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:47,450 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) [2021-12-14 23:41:47,458 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 [2021-12-14 23:41:47,458 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 [2021-12-14 23:41:47,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:41:47,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-14 23:41:47,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:41:47,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-14 23:41:47,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:41:47,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-14 23:41:47,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-14 23:41:47,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-14 23:41:47,498 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 [2021-12-14 23:41:47,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:47,499 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) [2021-12-14 23:41:47,500 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 [2021-12-14 23:41:47,503 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 [2021-12-14 23:41:47,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-14 23:41:47,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-14 23:41:47,510 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-14 23:41:47,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-14 23:41:47,517 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-14 23:41:47,517 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-14 23:41:47,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-14 23:41:47,568 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-14 23:41:47,568 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-14 23:41:47,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:41:47,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:41:47,571 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) [2021-12-14 23:41:47,572 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 [2021-12-14 23:41:47,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-14 23:41:47,619 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-12-14 23:41:47,619 INFO L513 LassoAnalysis]: Proved termination. [2021-12-14 23:41:47,620 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2021-12-14 23:41:47,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-14 23:41:47,647 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-12-14 23:41:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:41:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:41:47,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 23:41:47,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:41:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:41:47,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 23:41:47,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 23:41:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:41:47,767 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 [2021-12-14 23:41:47,768 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) [2021-12-14 23:41:47,851 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. [2021-12-14 23:41:47,853 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 [2021-12-14 23:41:47,856 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) [2021-12-14 23:41:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-12-14 23:41:47,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-14 23:41:47,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:41:47,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-14 23:41:47,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:41:47,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-14 23:41:47,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-14 23:41:47,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-12-14 23:41:47,860 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:41:47,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-12-14 23:41:47,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-14 23:41:47,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-14 23:41:47,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-14 23:41:47,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:41:47,863 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:41:47,863 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:41:47,863 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 23:41:47,863 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:41:47,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-14 23:41:47,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-14 23:41:47,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-14 23:41:47,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:41:47 BoogieIcfgContainer [2021-12-14 23:41:47,868 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:41:47,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:41:47,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:41:47,869 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:41:47,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:46" (3/4) ... [2021-12-14 23:41:47,871 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-14 23:41:47,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:41:47,871 INFO L158 Benchmark]: Toolchain (without parser) took 1767.44ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 55.4MB in the end (delta: 39.3MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,871 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:41:47,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.71ms. Allocated memory is still 125.8MB. Free memory was 94.5MB in the beginning and 101.6MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.92ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 100.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,873 INFO L158 Benchmark]: Boogie Preprocessor took 9.16ms. Allocated memory is still 125.8MB. Free memory was 100.1MB in the beginning and 99.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:41:47,873 INFO L158 Benchmark]: RCFGBuilder took 138.15ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 91.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,873 INFO L158 Benchmark]: BuchiAutomizer took 1431.10ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 56.1MB in the end (delta: 34.7MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,874 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 125.8MB. Free memory was 56.1MB in the beginning and 55.4MB in the end (delta: 653.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:41:47,875 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 83.9MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.71ms. Allocated memory is still 125.8MB. Free memory was 94.5MB in the beginning and 101.6MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.92ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 100.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 9.16ms. Allocated memory is still 125.8MB. Free memory was 100.1MB in the beginning and 99.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 138.15ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 91.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1431.10ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 56.1MB in the end (delta: 34.7MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 125.8MB. Free memory was 56.1MB in the beginning and 55.4MB in the end (delta: 653.2kB). Peak memory consumption was 2.1MB. 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 0.1s. 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 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: 121ms 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! [2021-12-14 23:41:47,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-14 23:41:48,113 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