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

\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 r35175 = 333.75;
        double r35176 = 33096.0;
        double r35177 = 6.0;
        double r35178 = pow(r35176, r35177);
        double r35179 = r35175 * r35178;
        double r35180 = 77617.0;
        double r35181 = r35180 * r35180;
        double r35182 = 11.0;
        double r35183 = r35182 * r35181;
        double r35184 = r35176 * r35176;
        double r35185 = r35183 * r35184;
        double r35186 = -r35178;
        double r35187 = r35185 + r35186;
        double r35188 = -121.0;
        double r35189 = 4.0;
        double r35190 = pow(r35176, r35189);
        double r35191 = r35188 * r35190;
        double r35192 = r35187 + r35191;
        double r35193 = -2.0;
        double r35194 = r35192 + r35193;
        double r35195 = r35181 * r35194;
        double r35196 = r35179 + r35195;
        double r35197 = 5.5;
        double r35198 = 8.0;
        double r35199 = pow(r35176, r35198);
        double r35200 = r35197 * r35199;
        double r35201 = r35196 + r35200;
        double r35202 = 2.0;
        double r35203 = r35202 * r35176;
        double r35204 = r35180 / r35203;
        double r35205 = r35201 + r35204;
        return r35205;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019194 
(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