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

\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 r22155 = 333.75;
        double r22156 = 33096.0;
        double r22157 = 6.0;
        double r22158 = pow(r22156, r22157);
        double r22159 = r22155 * r22158;
        double r22160 = 77617.0;
        double r22161 = r22160 * r22160;
        double r22162 = 11.0;
        double r22163 = r22162 * r22161;
        double r22164 = r22156 * r22156;
        double r22165 = r22163 * r22164;
        double r22166 = -r22158;
        double r22167 = r22165 + r22166;
        double r22168 = -121.0;
        double r22169 = 4.0;
        double r22170 = pow(r22156, r22169);
        double r22171 = r22168 * r22170;
        double r22172 = r22167 + r22171;
        double r22173 = -2.0;
        double r22174 = r22172 + r22173;
        double r22175 = r22161 * r22174;
        double r22176 = r22159 + r22175;
        double r22177 = 5.5;
        double r22178 = 8.0;
        double r22179 = pow(r22156, r22178);
        double r22180 = r22177 * r22179;
        double r22181 = r22176 + r22180;
        double r22182 = 2.0;
        double r22183 = r22182 * r22156;
        double r22184 = r22160 / r22183;
        double r22185 = r22181 + r22184;
        return r22185;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019196 
(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