; EXPECT: unsat
; COMMAND-LINE: --cegqi-si=none --sygus-out=status
(set-logic LIA)
(synth-fun f ((x Int)) Int
    ((Start Int ((+ Con Con) (+ Start Start) x))
     (Con Int (0 1))))

(declare-var x Int)
(constraint (= (f x) (* 2 x)))
(check-synth)