./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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/fibo_2calls_2-2.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 557a695617b4e9b94623290cf2a16a969b4f7de0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:16:29,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:16:29,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:16:29,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:16:29,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:16:29,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:16:29,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:16:29,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:16:29,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:16:29,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:16:29,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:16:29,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:16:29,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:16:29,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:16:29,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:16:29,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:16:29,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:16:29,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:16:29,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:16:29,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:16:29,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:16:29,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:16:29,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:16:29,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:16:29,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:16:29,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:16:29,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:16:29,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:16:29,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:16:29,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:16:29,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:16:29,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:16:29,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:16:29,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:16:29,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:16:29,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:16:29,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:16:29,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:16:29,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:16:29,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:16:29,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:16:29,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:16:29,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:16:29,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:16:29,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:16:29,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:16:29,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:16:29,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:16:29,369 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:16:29,369 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:16:29,370 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:16:29,370 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:16:29,370 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:16:29,370 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:16:29,371 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:16:29,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:16:29,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:16:29,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:16:29,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:16:29,378 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:16:29,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:16:29,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:16:29,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:16:29,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:16:29,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:16:29,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:16:29,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:16:29,380 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:16:29,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 557a695617b4e9b94623290cf2a16a969b4f7de0 [2021-08-31 04:16:29,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:16:29,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:16:29,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:16:29,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:16:29,631 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:16:29,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2021-08-31 04:16:29,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d3556c6/98b8844000dd482f9f26862682117102/FLAG5d12d4fa8 [2021-08-31 04:16:30,011 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:16:30,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2021-08-31 04:16:30,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d3556c6/98b8844000dd482f9f26862682117102/FLAG5d12d4fa8 [2021-08-31 04:16:30,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d3556c6/98b8844000dd482f9f26862682117102 [2021-08-31 04:16:30,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:16:30,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:16:30,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:16:30,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:16:30,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:16:30,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a2b1dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30, skipping insertion in model container [2021-08-31 04:16:30,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:16:30,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:16:30,115 WARN L228 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/fibo_2calls_2-2.c[946,959] [2021-08-31 04:16:30,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:16:30,120 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:16:30,129 WARN L228 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/fibo_2calls_2-2.c[946,959] [2021-08-31 04:16:30,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:16:30,142 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:16:30,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30 WrapperNode [2021-08-31 04:16:30,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:16:30,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:16:30,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:16:30,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:16:30,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:16:30,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:16:30,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:16:30,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:16:30,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:16:30,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:16:30,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:16:30,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:16:30,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (1/1) ... [2021-08-31 04:16:30,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:30,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:30,251 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) [2021-08-31 04:16:30,263 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 [2021-08-31 04:16:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:16:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-08-31 04:16:30,293 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-08-31 04:16:30,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:16:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-08-31 04:16:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-08-31 04:16:30,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:16:30,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:16:30,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:16:30,420 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-31 04:16:30,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:16:30 BoogieIcfgContainer [2021-08-31 04:16:30,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:16:30,423 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:16:30,423 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:16:30,425 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:16:30,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:16:30,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:16:30" (1/3) ... [2021-08-31 04:16:30,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8b2894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:16:30, skipping insertion in model container [2021-08-31 04:16:30,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:16:30,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:16:30" (2/3) ... [2021-08-31 04:16:30,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f8b2894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:16:30, skipping insertion in model container [2021-08-31 04:16:30,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:16:30,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:16:30" (3/3) ... [2021-08-31 04:16:30,428 INFO L389 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2-2.c [2021-08-31 04:16:30,476 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:16:30,476 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:16:30,476 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:16:30,476 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:16:30,476 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:16:30,476 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:16:30,476 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:16:30,477 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:16:30,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-31 04:16:30,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-08-31 04:16:30,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:16:30,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:16:30,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 04:16:30,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:16:30,509 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:16:30,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-08-31 04:16:30,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-08-31 04:16:30,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:16:30,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:16:30,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 04:16:30,515 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:16:30,522 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 2; 15#L39true call main_#t~ret11 := fibo1(main_~x~0);< 5#fibo1ENTRYtrue [2021-08-31 04:16:30,523 INFO L793 eck$LassoCheckResult]: Loop: 5#fibo1ENTRYtrue ~n := #in~n; 9#L10true assume !(~n < 1); 8#L12true assume !(1 == ~n); 10#L15true call #t~ret7 := fibo2(~n - 1);< 14#fibo2ENTRYtrue ~n := #in~n; 12#L20true assume !(~n < 1); 17#L22true assume !(1 == ~n); 23#L25true call #t~ret9 := fibo1(~n - 1);< 5#fibo1ENTRYtrue [2021-08-31 04:16:30,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:16:30,527 INFO L82 PathProgramCache]: Analyzing trace with hash 29896, now seen corresponding path program 1 times [2021-08-31 04:16:30,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:16:30,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132574038] [2021-08-31 04:16:30,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:16:30,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:16:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:16:30,598 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:16:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:16:30,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:16:30,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:16:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 181289832, now seen corresponding path program 1 times [2021-08-31 04:16:30,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:16:30,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943515045] [2021-08-31 04:16:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:16:30,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:16:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:16:30,653 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:16:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:16:30,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:16:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:16:30,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1313669423, now seen corresponding path program 1 times [2021-08-31 04:16:30,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:16:30,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121018390] [2021-08-31 04:16:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:16:30,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:16:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:16:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:16:30,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:16:30,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121018390] [2021-08-31 04:16:30,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121018390] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:16:30,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:16:30,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-31 04:16:30,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769002891] [2021-08-31 04:16:31,003 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 04:16:31,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 04:16:31,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 04:16:31,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 04:16:31,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 04:16:31,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 04:16:31,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 04:16:31,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2021-08-31 04:16:31,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 04:16:31,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 04:16:31,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 04:16:31,090 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 04:16:31,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,097 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) [2021-08-31 04:16:31,106 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 [2021-08-31 04:16:31,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,135 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,136 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,156 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 [2021-08-31 04:16:31,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,161 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) [2021-08-31 04:16:31,162 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 [2021-08-31 04:16:31,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,192 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 [2021-08-31 04:16:31,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,193 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) [2021-08-31 04:16:31,194 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 [2021-08-31 04:16:31,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,206 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,206 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,223 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 [2021-08-31 04:16:31,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,224 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) [2021-08-31 04:16:31,225 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 [2021-08-31 04:16:31,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,245 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,263 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 [2021-08-31 04:16:31,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,269 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) [2021-08-31 04:16:31,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,285 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 [2021-08-31 04:16:31,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,313 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 [2021-08-31 04:16:31,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,314 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) [2021-08-31 04:16:31,315 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 [2021-08-31 04:16:31,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,325 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,340 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 [2021-08-31 04:16:31,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,341 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) [2021-08-31 04:16:31,342 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 [2021-08-31 04:16:31,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,351 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,381 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 [2021-08-31 04:16:31,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,397 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) [2021-08-31 04:16:31,412 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 [2021-08-31 04:16:31,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 04:16:31,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 04:16:31,444 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 [2021-08-31 04:16:31,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-31 04:16:31,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 04:16:31,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,486 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-31 04:16:31,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 04:16:31,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 04:16:31,549 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 04:16:31,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,553 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 04:16:31,553 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 04:16:31,553 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 04:16:31,553 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 04:16:31,553 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 04:16:31,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 04:16:31,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 04:16:31,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2021-08-31 04:16:31,554 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 04:16:31,554 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 04:16:31,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 04:16:31,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 04:16:31,637 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 04:16:31,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,641 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-31 04:16:31,822 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 [2021-08-31 04:16:31,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:31,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:31,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:31,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:31,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:31,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:31,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:31,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:31,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,851 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-31 04:16:31,856 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 [2021-08-31 04:16:31,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:31,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:31,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:31,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:31,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:31,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:31,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:31,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:31,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,883 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-31 04:16:31,887 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 [2021-08-31 04:16:31,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:31,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:31,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:31,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:31,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:31,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:31,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:31,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:31,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,917 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-31 04:16:31,918 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 [2021-08-31 04:16:31,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:31,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:31,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:31,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:31,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:31,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:31,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:31,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:31,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,963 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,971 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 [2021-08-31 04:16:31,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-31 04:16:31,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:31,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:31,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:31,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:31,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:31,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:31,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:31,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:31,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:31,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:31,996 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:31,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-31 04:16:31,998 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 [2021-08-31 04:16:32,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:32,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:32,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:32,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:32,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:32,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:32,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:32,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:32,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:32,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:32,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:32,030 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:32,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-31 04:16:32,031 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 [2021-08-31 04:16:32,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:32,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:32,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:32,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:32,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:32,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:32,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:32,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:32,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:32,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:32,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:32,056 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:32,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-31 04:16:32,058 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 [2021-08-31 04:16:32,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:32,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:32,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:32,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:32,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:32,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:32,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:32,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 04:16:32,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:32,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:32,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:32,084 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:32,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-31 04:16:32,086 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 [2021-08-31 04:16:32,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 04:16:32,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 04:16:32,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 04:16:32,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 04:16:32,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 04:16:32,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 04:16:32,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 04:16:32,118 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 04:16:32,120 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-08-31 04:16:32,120 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 04:16:32,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:16:32,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:16:32,122 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:16:32,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-31 04:16:32,124 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 04:16:32,124 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 04:16:32,124 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 04:16:32,124 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2021-08-31 04:16:32,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:32,141 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 04:16:32,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:16:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:16:32,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 04:16:32,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-31 04:16:32,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 04:16:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:16:32,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-31 04:16:32,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 04:16:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:16:32,279 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-08-31 04:16:32,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:16:32,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 116 transitions. Complement of second has 24 states. [2021-08-31 04:16:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-08-31 04:16:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:16:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-08-31 04:16:32,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2021-08-31 04:16:32,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:16:32,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-08-31 04:16:32,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:16:32,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2021-08-31 04:16:32,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 04:16:32,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-08-31 04:16:32,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-08-31 04:16:32,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 61 states and 82 transitions. [2021-08-31 04:16:32,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-08-31 04:16:32,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-08-31 04:16:32,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2021-08-31 04:16:32,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 04:16:32,401 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 82 transitions. [2021-08-31 04:16:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2021-08-31 04:16:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-08-31 04:16:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2021-08-31 04:16:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2021-08-31 04:16:32,421 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-08-31 04:16:32,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:16:32,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-31 04:16:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-31 04:16:32,424 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:16:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:16:32,475 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-31 04:16:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 04:16:32,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2021-08-31 04:16:32,477 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 04:16:32,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-08-31 04:16:32,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 04:16:32,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 04:16:32,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 04:16:32,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:16:32,478 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:16:32,478 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:16:32,478 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 04:16:32,478 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:16:32,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 04:16:32,478 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 04:16:32,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 04:16:32,480 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:16:32,483 INFO L158 Benchmark]: Toolchain (without parser) took 2456.61ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.0MB in the beginning and 29.3MB in the end (delta: 13.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-08-31 04:16:32,483 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:16:32,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.80ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 46.8MB in the end (delta: -4.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-08-31 04:16:32,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.70ms. Allocated memory is still 62.9MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:16:32,484 INFO L158 Benchmark]: Boogie Preprocessor took 13.51ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.1MB in the end (delta: 859.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:16:32,484 INFO L158 Benchmark]: RCFGBuilder took 211.21ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 35.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 04:16:32,485 INFO L158 Benchmark]: BuchiAutomizer took 2058.66ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.0MB in the beginning and 29.3MB in the end (delta: 5.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-08-31 04:16:32,486 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 62.9MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 117.80ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 46.8MB in the end (delta: -4.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.70ms. Allocated memory is still 62.9MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.51ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.1MB in the end (delta: 859.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.21ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 35.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2058.66ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 35.0MB in the beginning and 29.3MB in the end (delta: 5.7MB). Peak memory consumption was 21.0MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:16:32,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...