?

\[\frac{x + y \cdot \left(z - x\right)}{z} \]
(FPCore (x y z) :precision binary64 (/ (+ x (* y (- z x))) z))
double code(double x, double y, double z) {
	return (x + (y * (z - x))) / z;
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (x + (y * (z - x))) / z
end function
public static double code(double x, double y, double z) {
	return (x + (y * (z - x))) / z;
}
def code(x, y, z):
	return (x + (y * (z - x))) / z
function code(x, y, z)
	return Float64(Float64(x + Float64(y * Float64(z - x))) / z)
end
function tmp = code(x, y, z)
	tmp = (x + (y * (z - x))) / z;
end
code[x_, y_, z_] := N[(N[(x + N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]
\frac{x + y \cdot \left(z - x\right)}{z}

Reproduce?

Please include this information when filing a bug report:

herbie shell --seed 2023033 
(FPCore (x y z)
  :name "Diagrams.Backend.Rasterific:rasterificRadialGradient from diagrams-rasterific-1.3.1.3"
  :precision binary64

  :herbie-target
  (- (+ y (/ x z)) (/ y (/ z x)))

  (/ (+ x (* y (- z x))) z))

Backtrace

map: contract violation expected: list? given: #<eof>LC
gen-map/usr/share/racket/collects/racket/private/map.rkt2572
run-egglog/home/nightlies/herbie/oflatt-egglog-ctx/src/egglog/run-egglog.rkt14560
run-simplify-input/home/nightlies/herbie/oflatt-egglog-ctx/src/core/simplify.rkt730
simplify-batch/home/nightlies/herbie/oflatt-egglog-ctx/src/core/simplify.rkt480
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-higher-order.rkt37933
simplify!/home/nightlies/herbie/oflatt-egglog-ctx/src/patch.rkt2460
patch-table-run/home/nightlies/herbie/oflatt-egglog-ctx/src/patch.rkt3180
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt48618
run-iter!/home/nightlies/herbie/oflatt-egglog-ctx/src/mainloop.rkt2620
mutate!/home/nightlies/herbie/oflatt-egglog-ctx/src/mainloop.rkt3720
run-improve!/home/nightlies/herbie/oflatt-egglog-ctx/src/mainloop.rkt3200
run-herbie/home/nightlies/herbie/oflatt-egglog-ctx/src/sandbox.rkt570
(unnamed)/home/nightlies/herbie/oflatt-egglog-ctx/src/sandbox.rkt1336
(unnamed)/usr/share/racket/pkgs/profile-lib/main.rkt4010
profile-thunk/usr/share/racket/pkgs/profile-lib/main.rkt90
(unnamed)/usr/share/racket/collects/racket/engine.rkt4224