Exception for ab-angle->ABCF D

• Unsound rule application detected in e-graph. Results may not be sound.

• 28.4% of points produce a very large (infinite) output. You may want to add a precondition.

Math

\[-\left(\left(a \cdot a\right) \cdot b\right) \cdot b \]

FPCore

(FPCore (a b) :precision binary64 (- (* (* (* a a) b) b)))

C

double code(double a, double b) {
	return -(((a * a) * b) * b);
}

Fortran

real(8) function code(a, b)
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    code = -(((a * a) * b) * b)
end function

Java

public static double code(double a, double b) {
	return -(((a * a) * b) * b);
}

Python

def code(a, b):
	return -(((a * a) * b) * b)

Julia

function code(a, b)
	return Float64(-Float64(Float64(Float64(a * a) * b) * b))
end

MATLAB

function tmp = code(a, b)
	tmp = -(((a * a) * b) * b);
end

Wolfram

code[a_, b_] := (-N[(N[(N[(a * a), $MachinePrecision] * b), $MachinePrecision] * b), $MachinePrecision])

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2023244 
(FPCore (a b)
  :name "ab-angle->ABCF D"
  :precision binary64
  (- (* (* (* a a) b) b)))

Backtrace

_arb-ptr: contract violation expected: _arb? given: 3		L	C
_arb-ptr	unknown
(unnamed)	/home/nightlies/herbie/arb-support/src/arb.rkt	155	16
f	/home/nightlies/herbie/arb-support/src/programs.rkt	187	2
(unnamed)	/home/nightlies/herbie/arb-support/src/ground-truth.rkt	23	2
arb-eval	/home/nightlies/herbie/arb-support/src/sampling.rkt	126	0
f	/home/nightlies/herbie/arb-support/src/ground-truth.rkt	46	2
compute-local-errors	/home/nightlies/herbie/arb-support/src/core/localize.rkt	38	0
batch-localize-error	/home/nightlies/herbie/arb-support/src/core/localize.rkt	26	0
localize!	/home/nightlies/herbie/arb-support/src/mainloop.rkt	123	0
run-iter!	/home/nightlies/herbie/arb-support/src/mainloop.rkt	276	0
mutate!	/home/nightlies/herbie/arb-support/src/mainloop.rkt	395	0
run-improve!	/home/nightlies/herbie/arb-support/src/mainloop.rkt	353	0
get-alternatives/report	/home/nightlies/herbie/arb-support/src/sandbox.rkt	148	0
(unnamed)	/home/nightlies/herbie/arb-support/src/sandbox.rkt	247	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