Data.Colour.CIE:cieLABView from colour-2.3.3, B

Specification

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\[\begin{array}{l} \\ 500 \cdot \left(x - y\right) \end{array} \]
(FPCore (x y) :precision binary64 (* 500.0 (- x y)))
double code(double x, double y) {
	return 500.0 * (x - y);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = 500.0d0 * (x - y)
end function
public static double code(double x, double y) {
	return 500.0 * (x - y);
}
def code(x, y):
	return 500.0 * (x - y)
function code(x, y)
	return Float64(500.0 * Float64(x - y))
end
function tmp = code(x, y)
	tmp = 500.0 * (x - y);
end
code[x_, y_] := N[(500.0 * N[(x - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
500 \cdot \left(x - y\right)
\end{array}

Reproduce

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herbie shell --seed 2024169 
(FPCore (x y)
  :name "Data.Colour.CIE:cieLABView from colour-2.3.3, B"
  :precision binary64
  (* 500.0 (- x y)))

Please file a bug report with this information.

Backtrace

timeline-push!: contract violation expected: jsexpr? given: '#hash((#t . 0.9990236759185791) (unknown . 0.0) (precondition . 0.0009763240814208984) (valid . 0.0)) in: the repeated argument of (-> symbol? jsexpr? ... void?) contract from: <pkgs>/herbie/timeline.rkt blaming: <pkgs>/herbie/searchreals.rkt (assuming the contract is correct) at: <pkgs>/herbie/timeline.rkt:10:3LC
raise-blame-error/usr/local/racket/collects/racket/contract/private/blame.rkt3460
loop/usr/local/racket/collects/racket/contract/private/list.rkt99112
(unnamed).../private/arrow-val-first.rkt48618
find-intervals/home/nightlies/herbie/fix-rival/src/searchreals.rkt860
make-sampler/home/nightlies/herbie/fix-rival/src/sampling.rkt1100
sample-points/home/nightlies/herbie/fix-rival/src/sampling.rkt2440
setup-context!/home/nightlies/herbie/fix-rival/src/mainloop.rkt450
get-alternatives/report/home/nightlies/herbie/fix-rival/src/sandbox.rkt1660
(unnamed)/home/nightlies/herbie/fix-rival/src/sandbox.rkt2606
(unnamed)/usr/local/racket/share/pkgs/profile-lib/main.rkt4010
profile-thunk/usr/local/racket/share/pkgs/profile-lib/main.rkt90
(unnamed)/usr/local/racket/collects/racket/engine.rkt4224