\[\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.764470499998\right) \cdot y + 230661.510616000014\right) \cdot y + t}{\left(\left(\left(y + a\right) \cdot y + b\right) \cdot y + c\right) \cdot y + i}\]

\frac{\left(\left(\left(x \cdot y + z\right) \cdot y + 27464.764470499998\right) \cdot y + 230661.510616000014\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 r8147 = x;
        double r8148 = y;
        double r8149 = r8147 * r8148;
        double r8150 = z;
        double r8151 = r8149 + r8150;
        double r8152 = r8151 * r8148;
        double r8153 = 27464.7644705;
        double r8154 = r8152 + r8153;
        double r8155 = r8154 * r8148;
        double r8156 = 230661.510616;
        double r8157 = r8155 + r8156;
        double r8158 = r8157 * r8148;
        double r8159 = t;
        double r8160 = r8158 + r8159;
        double r8161 = a;
        double r8162 = r8148 + r8161;
        double r8163 = r8162 * r8148;
        double r8164 = b;
        double r8165 = r8163 + r8164;
        double r8166 = r8165 * r8148;
        double r8167 = c;
        double r8168 = r8166 + r8167;
        double r8169 = r8168 * r8148;
        double r8170 = i;
        double r8171 = r8169 + r8170;
        double r8172 = r8160 / r8171;
        return r8172;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019179 +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

result arity mismatch; expected number of values not received expected: 2 received: 1 in: local-binding form values...: 0		L	C
loop	/data/pavpan/nightlies/herbie/various-cleanup/src/core/extraction.rkt	25	2
(unnamed)	/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt	26	0
simplify!	/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt	217	0
run-improve43	/data/pavpan/nightlies/herbie/various-cleanup/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