java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/Sifa.xml -i ../../../trunk/examples/programs/recursive/fibonacci-vs-ackermann.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b03553c [2019-08-05 18:14:57,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 18:14:57,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 18:14:57,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 18:14:57,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 18:14:57,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 18:14:57,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 18:14:57,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 18:14:57,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 18:14:57,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 18:14:57,485 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 18:14:57,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 18:14:57,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 18:14:57,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 18:14:57,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 18:14:57,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 18:14:57,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 18:14:57,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 18:14:57,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 18:14:57,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 18:14:57,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 18:14:57,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 18:14:57,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 18:14:57,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 18:14:57,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 18:14:57,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 18:14:57,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 18:14:57,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 18:14:57,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 18:14:57,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 18:14:57,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 18:14:57,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 18:14:57,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 18:14:57,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 18:14:57,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 18:14:57,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 18:14:57,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 18:14:57,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 18:14:57,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 18:14:57,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 18:14:57,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 18:14:57,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 18:14:57,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 18:14:57,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 18:14:57,567 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 18:14:57,568 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 18:14:57,569 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/fibonacci-vs-ackermann.bpl [2019-08-05 18:14:57,570 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/fibonacci-vs-ackermann.bpl' [2019-08-05 18:14:57,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 18:14:57,615 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-08-05 18:14:57,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 18:14:57,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 18:14:57,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 18:14:57,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... [2019-08-05 18:14:57,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 18:14:57,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 18:14:57,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 18:14:57,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 18:14:57,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fibonacci-vs-ackermann.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 06:14:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 18:14:57,744 INFO L130 BoogieDeclarations]: Found specification of procedure Main [2019-08-05 18:14:57,745 INFO L138 BoogieDeclarations]: Found implementation of procedure Main [2019-08-05 18:14:57,745 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2019-08-05 18:14:57,745 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2019-08-05 18:14:57,745 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2019-08-05 18:14:57,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2019-08-05 18:14:57,853 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 18:18:34,018 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown