fma_test2

Specification

?
\[1.9 \leq t \land t \leq 2.1\]
\[\begin{array}{l} \\ 1.7 \cdot 10^{+308} \cdot t - 1.7 \cdot 10^{+308} \end{array} \]
(FPCore (t) :precision binary64 (- (* 1.7e+308 t) 1.7e+308))
double code(double t) {
	return (1.7e+308 * t) - 1.7e+308;
}
real(8) function code(t)
    real(8), intent (in) :: t
    code = (1.7d+308 * t) - 1.7d+308
end function
public static double code(double t) {
	return (1.7e+308 * t) - 1.7e+308;
}
def code(t):
	return (1.7e+308 * t) - 1.7e+308
function code(t)
	return Float64(Float64(1.7e+308 * t) - 1.7e+308)
end
function tmp = code(t)
	tmp = (1.7e+308 * t) - 1.7e+308;
end
code[t_] := N[(N[(1.7e+308 * t), $MachinePrecision] - 1.7e+308), $MachinePrecision]
\begin{array}{l}

\\
1.7 \cdot 10^{+308} \cdot t - 1.7 \cdot 10^{+308}
\end{array}

Reproduce

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herbie shell --seed 2024054 
(FPCore (t)
  :name "fma_test2"
  :precision binary64
  :pre (and (<= 1.9 t) (<= t 2.1))

  :alt
  (fma 1.7e+308 t (- 1.7e+308))

  (- (* 1.7e+308 t) 1.7e+308))

Please file a bug report with this information.

Backtrace

precision: undefined; cannot use before initializationLC
ival-eval/home/nightlies/herbie/longer-taylor/src/ground-truth.rkt690
batch-prepare-points/home/nightlies/herbie/longer-taylor/src/sampling.rkt1130
sample-points/home/nightlies/herbie/longer-taylor/src/sampling.rkt1590
setup-context!/home/nightlies/herbie/longer-taylor/src/mainloop.rkt3000
get-alternatives/report/home/nightlies/herbie/longer-taylor/src/sandbox.rkt1690
(unnamed)/home/nightlies/herbie/longer-taylor/src/sandbox.rkt2626
(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