Exception for Exp of sum of logs

Specification

Math

\[\begin{array}{l} \\ e^{\log a + \log b} \end{array} \]

FPCore

(FPCore (a b) :precision binary64 (exp (+ (log a) (log b))))

C

double code(double a, double b) {
	return exp((log(a) + log(b)));
}

Fortran

real(8) function code(a, b)
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = exp((log(a) + log(b)))
end function

Java

public static double code(double a, double b) {
	return Math.exp((Math.log(a) + Math.log(b)));
}

Python

def code(a, b):
	return math.exp((math.log(a) + math.log(b)))

Julia

function code(a, b)
	return exp(Float64(log(a) + log(b)))
end

MATLAB

function tmp = code(a, b)
	tmp = exp((log(a) + log(b)));
end

Wolfram

code[a_, b_] := N[Exp[N[(N[Log[a], $MachinePrecision] + N[Log[b], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]

Reproduce

herbie shell --seed 2023271 
(FPCore (a b)
  :name "Exp of sum of logs"
  :precision binary64

  :herbie-target
  (* a b)

  (exp (+ (log a) (log b))))

Please file a bug report with this information.

Backtrace

length: contract violation expected: list? given: 8000		L	C
(unnamed)	/home/nightlies/herbie/arb-support/egg-herbie/main.rkt	111	2
egraph-run	/home/nightlies/herbie/main/src/core/egg-herbie.rkt	502	0
egraph-run-rules	/home/nightlies/herbie/main/src/core/egg-herbie.rkt	559	0
run-egg	/home/nightlies/herbie/main/src/core/egg-herbie.rkt	288	0
simplify-batch	/home/nightlies/herbie/main/src/core/simplify.rkt	15	0
(unnamed)	/usr/share/racket/collects/racket/contract/private/arrow-higher-order.rkt	379	33
find-preprocessing	/home/nightlies/herbie/main/src/preprocess.rkt	11	0
run-improve!	/home/nightlies/herbie/main/src/mainloop.rkt	325	0
get-alternatives/report	/home/nightlies/herbie/main/src/sandbox.rkt	149	0
(unnamed)	/home/nightlies/herbie/main/src/sandbox.rkt	245	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