(meta-info (comment "Ctrl example from examples-transformed/student/fib09.ctrs"))
(format LCTRS :logic QF_LIA)
(fun return 1 :sort (Int Unit))
(fun tmp 2 :sort (Unit Unit Unit))
(fun fib 1 :sort (Int Unit))

(rule (tmp (return x) (return y)) (return (+ x y)) :vars ((x Int) (y Int)))
(rule (fib x) (tmp (fib (- x 1)) (fib (- x 2))) :guard (>= (- x 2) 0) :vars ((x Int)))
(rule (fib 1) (return 1))
(rule (fib x) (return 0) :guard (<= x 0) :vars ((x Int)))