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

\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 r33263 = 333.75;
        double r33264 = 33096.0;
        double r33265 = 6.0;
        double r33266 = pow(r33264, r33265);
        double r33267 = r33263 * r33266;
        double r33268 = 77617.0;
        double r33269 = r33268 * r33268;
        double r33270 = 11.0;
        double r33271 = r33270 * r33269;
        double r33272 = r33264 * r33264;
        double r33273 = r33271 * r33272;
        double r33274 = -r33266;
        double r33275 = r33273 + r33274;
        double r33276 = -121.0;
        double r33277 = 4.0;
        double r33278 = pow(r33264, r33277);
        double r33279 = r33276 * r33278;
        double r33280 = r33275 + r33279;
        double r33281 = -2.0;
        double r33282 = r33280 + r33281;
        double r33283 = r33269 * r33282;
        double r33284 = r33267 + r33283;
        double r33285 = 5.5;
        double r33286 = 8.0;
        double r33287 = pow(r33264, r33286);
        double r33288 = r33285 * r33287;
        double r33289 = r33284 + r33288;
        double r33290 = 2.0;
        double r33291 = r33290 * r33264;
        double r33292 = r33268 / r33291;
        double r33293 = r33289 + r33292;
        return r33293;
}

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/js-tweaks/src/points.rkt	122	4
prepare-points	/data/pavpan/nightlies/herbie/js-tweaks/src/points.rkt	146	0
run-improve47	/data/pavpan/nightlies/herbie/js-tweaks/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