\[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644704999984242022037506103515625\right) \cdot y + 230661.5106160000141244381666183471679688\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}\]

\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.7644704999984242022037506103515625\right) \cdot y + 230661.5106160000141244381666183471679688\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}

double f(double x, double y, double z, double t, double a, double b, double c, double i) {
        double r8213 = x;
        double r8214 = y;
        double r8215 = r8213 * r8214;
        double r8216 = z;
        double r8217 = r8215 + r8216;
        double r8218 = r8217 * r8214;
        double r8219 = 27464.7644705;
        double r8220 = r8218 + r8219;
        double r8221 = r8220 * r8214;
        double r8222 = 230661.510616;
        double r8223 = r8221 + r8222;
        double r8224 = r8223 * r8214;
        double r8225 = t;
        double r8226 = r8224 + r8225;
        double r8227 = a;
        double r8228 = r8214 + r8227;
        double r8229 = r8228 * r8214;
        double r8230 = b;
        double r8231 = r8229 + r8230;
        double r8232 = r8231 * r8214;
        double r8233 = c;
        double r8234 = r8232 + r8233;
        double r8235 = r8234 * r8214;
        double r8236 = i;
        double r8237 = r8235 + r8236;
        double r8238 = r8226 / r8237;
        return r8238;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019191 +o rules:numerics
(FPCore (x y z t a b c i)
  :name "Numeric.SpecFunctions:logGamma from math-functions-0.1.5.2"
  (/ (+ (* (+ (* (+ (* (+ (* x y) z) y) 27464.7644705) y) 230661.510616) y) t) (+ (* (+ (* (+ (* (+ y a) y) b) y) c) y) i)))

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