\[\left(\left(333.75 \cdot {33096}^{6} + \left(77617 \cdot 77617\right) \cdot \left(\left(\left(\left(11 \cdot \left(77617 \cdot 77617\right)\right) \cdot \left(33096 \cdot 33096\right) + \left(-{33096}^{6}\right)\right) + -121 \cdot {33096}^{4}\right) + -2\right)\right) + 5.5 \cdot {33096}^{8}\right) + \frac{77617}{2 \cdot 33096}\]

\left(\left(333.75 \cdot {33096}^{6} + \left(77617 \cdot 77617\right) \cdot \left(\left(\left(\left(11 \cdot \left(77617 \cdot 77617\right)\right) \cdot \left(33096 \cdot 33096\right) + \left(-{33096}^{6}\right)\right) + -121 \cdot {33096}^{4}\right) + -2\right)\right) + 5.5 \cdot {33096}^{8}\right) + \frac{77617}{2 \cdot 33096}

double f() {
        double r32035 = 333.75;
        double r32036 = 33096.0;
        double r32037 = 6.0;
        double r32038 = pow(r32036, r32037);
        double r32039 = r32035 * r32038;
        double r32040 = 77617.0;
        double r32041 = r32040 * r32040;
        double r32042 = 11.0;
        double r32043 = r32042 * r32041;
        double r32044 = r32036 * r32036;
        double r32045 = r32043 * r32044;
        double r32046 = -r32038;
        double r32047 = r32045 + r32046;
        double r32048 = -121.0;
        double r32049 = 4.0;
        double r32050 = pow(r32036, r32049);
        double r32051 = r32048 * r32050;
        double r32052 = r32047 + r32051;
        double r32053 = -2.0;
        double r32054 = r32052 + r32053;
        double r32055 = r32041 * r32054;
        double r32056 = r32039 + r32055;
        double r32057 = 5.5;
        double r32058 = 8.0;
        double r32059 = pow(r32036, r32058);
        double r32060 = r32057 * r32059;
        double r32061 = r32056 + r32060;
        double r32062 = 2.0;
        double r32063 = r32062 * r32036;
        double r32064 = r32040 / r32063;
        double r32065 = r32061 + r32064;
        return r32065;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019194 +o rules:numerics
(FPCore ()
  :name "From Warwick Tucker's Validated Numerics"
  (+ (+ (+ (* 333.75 (pow 33096.0 6.0)) (* (* 77617.0 77617.0) (+ (+ (+ (* (* 11.0 (* 77617.0 77617.0)) (* 33096.0 33096.0)) (- (pow 33096.0 6.0))) (* -121.0 (pow 33096.0 4.0))) -2.0))) (* 5.5 (pow 33096.0 8.0))) (/ 77617.0 (* 2.0 33096.0))))

Backtrace

car: contract violation expected: pair? given: '()		L	C
loop	/data/pavpan/nightlies/herbie/master/src/points.rkt	122	4
prepare-points	/data/pavpan/nightlies/herbie/master/src/points.rkt	146	0
run-improve47	/data/pavpan/nightlies/herbie/master/src/mainloop.rkt	342	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.0/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.0/collects/racket/private/more-scheme.rkt	261	28