/export/starexec/sandbox2/solver/bin/starexec_run_HigherOrder /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- MAYBE We consider the system theBenchmark. Alphabet: 0 : [] --> nat app : [list * list] --> list cons : [nat * list] --> list head : [list] --> nat hrepeat : [nat * list -> list * list] --> list hshuffle : [list] --> list nil : [] --> list reverse : [list] --> list s : [nat] --> nat shuffle : [list] --> list tail : [list] --> list uhalf : [nat] --> nat Rules: app(nil, x) => x app(cons(x, y), z) => cons(x, app(y, z)) reverse(nil) => nil reverse(cons(x, y)) => app(reverse(y), cons(x, nil)) shuffle(nil) => nil shuffle(cons(x, y)) => cons(x, shuffle(reverse(y))) uhalf(0) => 0 uhalf(s(0)) => s(0) uhalf(s(s(x))) => s(uhalf(x)) hrepeat(0, f, x) => x hrepeat(s(x), f, y) => hrepeat(uhalf(x), f, f y) tail(cons(x, y)) => y head(cons(x, y)) => x hshuffle(x) => hrepeat(head(x), /\y.shuffle(y), tail(x)) This AFS is converted to an AFSM simply by replacing all free variables by meta-variables (with arity 0).