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

\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 r34924 = 333.75;
        double r34925 = 33096.0;
        double r34926 = 6.0;
        double r34927 = pow(r34925, r34926);
        double r34928 = r34924 * r34927;
        double r34929 = 77617.0;
        double r34930 = r34929 * r34929;
        double r34931 = 11.0;
        double r34932 = r34931 * r34930;
        double r34933 = r34925 * r34925;
        double r34934 = r34932 * r34933;
        double r34935 = -r34927;
        double r34936 = r34934 + r34935;
        double r34937 = -121.0;
        double r34938 = 4.0;
        double r34939 = pow(r34925, r34938);
        double r34940 = r34937 * r34939;
        double r34941 = r34936 + r34940;
        double r34942 = -2.0;
        double r34943 = r34941 + r34942;
        double r34944 = r34930 * r34943;
        double r34945 = r34928 + r34944;
        double r34946 = 5.5;
        double r34947 = 8.0;
        double r34948 = pow(r34925, r34947);
        double r34949 = r34946 * r34948;
        double r34950 = r34945 + r34949;
        double r34951 = 2.0;
        double r34952 = r34951 * r34925;
        double r34953 = r34929 / r34952;
        double r34954 = r34950 + r34953;
        return r34954;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019195 
(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