\[x = 77617 \land y = 33096\]

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

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

double f(double x, double y) {
        double r8000 = 333.75;
        double r8001 = y;
        double r8002 = 6.0;
        double r8003 = pow(r8001, r8002);
        double r8004 = r8000 * r8003;
        double r8005 = x;
        double r8006 = r8005 * r8005;
        double r8007 = 11.0;
        double r8008 = r8007 * r8005;
        double r8009 = r8008 * r8005;
        double r8010 = r8009 * r8001;
        double r8011 = r8010 * r8001;
        double r8012 = r8011 - r8003;
        double r8013 = 121.0;
        double r8014 = 4.0;
        double r8015 = pow(r8001, r8014);
        double r8016 = r8013 * r8015;
        double r8017 = r8012 - r8016;
        double r8018 = 2.0;
        double r8019 = r8017 - r8018;
        double r8020 = r8006 * r8019;
        double r8021 = r8004 + r8020;
        double r8022 = 5.5;
        double r8023 = 8.0;
        double r8024 = pow(r8001, r8023);
        double r8025 = r8022 * r8024;
        double r8026 = r8021 + r8025;
        double r8027 = r8018 * r8001;
        double r8028 = r8005 / r8027;
        double r8029 = r8026 + r8028;
        return r8029;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 
(FPCore (x y)
  :name "Rump's expression from Stadtherr's award speech"
  :pre (and (== x 77617.0) (== y 33096.0))
  (+ (+ (+ (* 333.75 (pow y 6.0)) (* (* x x) (- (- (- (* (* (* (* 11.0 x) x) y) y) (pow y 6.0)) (* 121.0 (pow y 4.0))) 2.0))) (* 5.5 (pow y 8.0))) (/ x (* 2.0 y))))

Backtrace

get-representation: Unknown representation #f		L	C
loop	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	122	4
prepare-points	/data/pavpan/nightlies/herbie/interface2/src/points.rkt	146	0
setup-prog!34	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	67	0
run-improve43	/data/pavpan/nightlies/herbie/interface2/src/mainloop.rkt	339	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