; EXPECT: unsat
; COMMAND-LINE: --sygus-out=status
(set-logic ALL)

(synth-fun f ((x String) (y String)) String)

(declare-var x String)
(declare-var y String)

(constraint (>= (str.len (f x y)) (str.len x)))
(constraint (>= (str.len (f x y)) (str.len y)))

(check-synth)