\[\left(\left(\left(\left(x \cdot \log y + z\right) + t\right) + a\right) + \left(b - 0.5\right) \cdot \log c\right) + y \cdot i\]

\left(\left(\left(\left(x \cdot \log y + z\right) + t\right) + a\right) + \left(b - 0.5\right) \cdot \log c\right) + y \cdot i

double f(double x, double y, double z, double t, double a, double b, double c, double i) {
        double r9012915 = x;
        double r9012916 = y;
        double r9012917 = log(r9012916);
        double r9012918 = r9012915 * r9012917;
        double r9012919 = z;
        double r9012920 = r9012918 + r9012919;
        double r9012921 = t;
        double r9012922 = r9012920 + r9012921;
        double r9012923 = a;
        double r9012924 = r9012922 + r9012923;
        double r9012925 = b;
        double r9012926 = 0.5;
        double r9012927 = r9012925 - r9012926;
        double r9012928 = c;
        double r9012929 = log(r9012928);
        double r9012930 = r9012927 * r9012929;
        double r9012931 = r9012924 + r9012930;
        double r9012932 = i;
        double r9012933 = r9012916 * r9012932;
        double r9012934 = r9012931 + r9012933;
        return r9012934;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019173 +o rules:numerics
(FPCore (x y z t a b c i)
  :name "Numeric.SpecFunctions:logBeta from math-functions-0.1.5.2, B"
  (+ (+ (+ (+ (+ (* x (log y)) z) t) a) (* (- b 0.5) (log c))) (* y i)))

Backtrace

hash-ref: no value found for key key: #<enode 463(463)>		L	C
for-loop	/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt	197	2
extractor-extract	/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt	196	0
for-loop	/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt	35	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-iter!	/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt	320	0
for-loop	/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt	354	4
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