\[\left(\frac{1}{8} \cdot x - \frac{y \cdot z}{2}\right) + t\]

\left(\frac{1}{8} \cdot x - \frac{y \cdot z}{2}\right) + t

double f(double x, double y, double z, double t) {
        double r84937327 = 1.0;
        double r84937328 = 8.0;
        double r84937329 = r84937327 / r84937328;
        double r84937330 = x;
        double r84937331 = r84937329 * r84937330;
        double r84937332 = y;
        double r84937333 = z;
        double r84937334 = r84937332 * r84937333;
        double r84937335 = 2.0;
        double r84937336 = r84937334 / r84937335;
        double r84937337 = r84937331 - r84937336;
        double r84937338 = t;
        double r84937339 = r84937337 + r84937338;
        return r84937339;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019173 +o rules:numerics
(FPCore (x y z t)
  :name "Diagrams.Solve.Polynomial:quartForm  from diagrams-solve-0.1, B"

  :herbie-target
  (- (+ (/ x 8.0) t) (* (/ z 2.0) y))

  (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t))

Backtrace

hash-ref: no value found for key key: #<enode 278(278)>		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