?

\[\left(0 \leq u1 \land u1 \leq 1\right) \land \left(0 \leq u2 \land u2 \leq 1\right)\]

\[\left(\frac{1}{6} \cdot {\left(-2 \cdot \log u1\right)}^{0.5}\right) \cdot \cos \left(\left(2 \cdot \pi\right) \cdot u2\right) + 0.5 \]

(FPCore (u1 u2)
 :precision binary64
 (+
  (* (* (/ 1.0 6.0) (pow (* -2.0 (log u1)) 0.5)) (cos (* (* 2.0 PI) u2)))
  0.5))

double code(double u1, double u2) {
	return (((1.0 / 6.0) * pow((-2.0 * log(u1)), 0.5)) * cos(((2.0 * ((double) M_PI)) * u2))) + 0.5;
}

public static double code(double u1, double u2) {
	return (((1.0 / 6.0) * Math.pow((-2.0 * Math.log(u1)), 0.5)) * Math.cos(((2.0 * Math.PI) * u2))) + 0.5;
}

def code(u1, u2):
	return (((1.0 / 6.0) * math.pow((-2.0 * math.log(u1)), 0.5)) * math.cos(((2.0 * math.pi) * u2))) + 0.5

function code(u1, u2)
	return Float64(Float64(Float64(Float64(1.0 / 6.0) * (Float64(-2.0 * log(u1)) ^ 0.5)) * cos(Float64(Float64(2.0 * pi) * u2))) + 0.5)
end

function tmp = code(u1, u2)
	tmp = (((1.0 / 6.0) * ((-2.0 * log(u1)) ^ 0.5)) * cos(((2.0 * pi) * u2))) + 0.5;
end

code[u1_, u2_] := N[(N[(N[(N[(1.0 / 6.0), $MachinePrecision] * N[Power[N[(-2.0 * N[Log[u1], $MachinePrecision]), $MachinePrecision], 0.5], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(N[(2.0 * Pi), $MachinePrecision] * u2), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + 0.5), $MachinePrecision]

\left(\frac{1}{6} \cdot {\left(-2 \cdot \log u1\right)}^{0.5}\right) \cdot \cos \left(\left(2 \cdot \pi\right) \cdot u2\right) + 0.5

Reproduce?

Please include this information when filing a bug report:

herbie shell --seed 2023098 
(FPCore (u1 u2)
  :name "normal distribution"
  :precision binary64
  :pre (and (and (<= 0.0 u1) (<= u1 1.0)) (and (<= 0.0 u2) (<= u2 1.0)))
  (+ (* (* (/ 1.0 6.0) (pow (* -2.0 (log u1)) 0.5)) (cos (* (* 2.0 PI) u2))) 0.5))

Backtrace

hash-ref: no value found for key key: 'false		L	C
(unnamed)	/home/nightlies/herbie/using-ruler-nightlies/src/syntax/syntax.rkt	230	2
f336	.../match/compiler.rkt	548	40
expand-parametric	/home/nightlies/herbie/using-ruler-nightlies/src/syntax/sugar.rkt	62	0
(unnamed)	/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt	255	9
rule->egg-rules	/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt	224	0
expand-rules	/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt	488	0
egraph-run-rules	/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt	509	0
(unnamed)	/home/nightlies/herbie/using-ruler-nightlies/src/core/simplify.rkt	58	3
with-egraph	/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt	333	0
simplify-batch	/home/nightlies/herbie/using-ruler-nightlies/src/core/simplify.rkt	23	0
(unnamed)	/usr/share/racket/collects/racket/contract/private/arrow-higher-order.rkt	379	33
get-swaps	/home/nightlies/herbie/using-ruler-nightlies/src/symmetry.rkt	6	0
connected-components	/home/nightlies/herbie/using-ruler-nightlies/src/symmetry.rkt	18	0
run-improve!	/home/nightlies/herbie/using-ruler-nightlies/src/mainloop.rkt	320	0
run-herbie	/home/nightlies/herbie/using-ruler-nightlies/src/sandbox.rkt	57	0
(unnamed)	/home/nightlies/herbie/using-ruler-nightlies/src/sandbox.rkt	133	6
(unnamed)	/usr/share/racket/pkgs/profile-lib/main.rkt	40	10
profile-thunk	/usr/share/racket/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/share/racket/collects/racket/engine.rkt	42	24