Use the --timeout flag to change the timeout.
herbie shell --seed 2020233
(FPCore (a b)
:name "Bouland and Aaronson, Equation (24)"
:precision binary64
(- (+ (pow (+ (* a a) (* b b)) 2.0) (* 4.0 (+ (* (* a a) (- 1.0 a)) (* (* b b) (+ 3.0 a))))) 1.0))