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

\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 r24922 = 3.0;
        double r24923 = 2.0;
        double r24924 = r;
        double r24925 = r24924 * r24924;
        double r24926 = r24923 / r24925;
        double r24927 = r24922 + r24926;
        double r24928 = 0.125;
        double r24929 = v;
        double r24930 = r24923 * r24929;
        double r24931 = r24922 - r24930;
        double r24932 = r24928 * r24931;
        double r24933 = w;
        double r24934 = r24933 * r24933;
        double r24935 = r24934 * r24924;
        double r24936 = r24935 * r24924;
        double r24937 = r24932 * r24936;
        double r24938 = 1.0;
        double r24939 = r24938 - r24929;
        double r24940 = r24937 / r24939;
        double r24941 = r24927 - r24940;
        double r24942 = 4.5;
        double r24943 = r24941 - r24942;
        return r24943;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019323 +o rules:numerics
(FPCore (v w r)
  :name "Rosa's TurbineBenchmark"
  :precision binary64
  (- (- (+ 3 (/ 2 (* r r))) (/ (* (* 0.125 (- 3 (* 2 v))) (* (* (* w w) r) r)) (- 1 v))) 4.5))

Backtrace

get-representation: Unknown representation real		L	C
(unnamed)	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	65	3
filter	/opt/racket-7.2/collects/racket/private/list.rkt	256	2
infer-splitpoints	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/core/regimes.rkt	34	0
get-final-combination	/data/pavpan/nightlies/herbie/fix-interface-bugs/src/mainloop.rkt	369	0
(unnamed)	/opt/racket-7.2/collects/racket/private/more-scheme.rkt	261	28
run	/opt/racket-7.2/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.2/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.2/collects/racket/private/more-scheme.rkt	261	28