\[\left(\left(3 + \frac{2}{r \cdot r}\right) - \frac{\left(0.125 \cdot \left(3 - 2 \cdot v\right)\right) \cdot \left(\left(\left(w \cdot w\right) \cdot r\right) \cdot r\right)}{1 - v}\right) - 4.5\]

\left(\left(3 + \frac{2}{r \cdot r}\right) - \frac{\left(0.125 \cdot \left(3 - 2 \cdot v\right)\right) \cdot \left(\left(\left(w \cdot w\right) \cdot r\right) \cdot r\right)}{1 - v}\right) - 4.5

double f(double v, double w, double r) {
        double r7986 = 3.0;
        double r7987 = 2.0;
        double r7988 = r;
        double r7989 = r7988 * r7988;
        double r7990 = r7987 / r7989;
        double r7991 = r7986 + r7990;
        double r7992 = 0.125;
        double r7993 = v;
        double r7994 = r7987 * r7993;
        double r7995 = r7986 - r7994;
        double r7996 = r7992 * r7995;
        double r7997 = w;
        double r7998 = r7997 * r7997;
        double r7999 = r7998 * r7988;
        double r8000 = r7999 * r7988;
        double r8001 = r7996 * r8000;
        double r8002 = 1.0;
        double r8003 = r8002 - r7993;
        double r8004 = r8001 / r8003;
        double r8005 = r7991 - r8004;
        double r8006 = 4.5;
        double r8007 = r8005 - r8006;
        return r8007;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 +o rules:numerics
(FPCore (v w r)
  :name "Rosa's TurbineBenchmark"
  (- (- (+ 3.0 (/ 2.0 (* r r))) (/ (* (* 0.125 (- 3.0 (* 2.0 v))) (* (* (* w w) r) r)) (- 1.0 v))) 4.5))

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