Exception for x (used to be hard to sample)

Specification

\[x = 0 \lor x = 10\]

Math

\[\begin{array}{l} \\ x \end{array} \]

FPCore

(FPCore (x) :precision binary64 x)

C

double code(double x) {
	return x;
}

Fortran

real(8) function code(x)
    real(8), intent (in) :: x
    code = x
end function

Java

public static double code(double x) {
	return x;
}

Python

def code(x):
	return x

Julia

function code(x)
	return x
end

MATLAB

function tmp = code(x)
	tmp = x;
end

Wolfram

code[x_] := x

Reproduce

herbie shell --seed 2024146 
(FPCore (x)
  :name "x (used to be hard to sample)"
  :precision binary64
  :pre (or (== x 0.0) (== x 10.0))
  x)

Please file a bug report with this information.

Backtrace

context-vars: contract violation expected: context? given: #<procedure:context>		L	C
context-vars	unknown
context-lookup	/home/nightlies/herbie/explanations-trifurcate/src/syntax/types.rkt	110	0
generate-timelines	/home/nightlies/herbie/explanations-trifurcate/src/explain.rkt	614	0
explain!	/home/nightlies/herbie/explanations-trifurcate/src/mainloop.rkt	362	0
mutate!	/home/nightlies/herbie/explanations-trifurcate/src/mainloop.rkt	65	0
run-improve!	/home/nightlies/herbie/explanations-trifurcate/src/mainloop.rkt	51	0
get-alternatives/report	/home/nightlies/herbie/explanations-trifurcate/src/sandbox.rkt	171	0
(unnamed)	/home/nightlies/herbie/explanations-trifurcate/src/sandbox.rkt	265	6
(unnamed)	/usr/local/racket/share/pkgs/profile-lib/main.rkt	40	10
profile-thunk	/usr/local/racket/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/local/racket/collects/racket/engine.rkt	42	24