Exception for Expression 4, p15

Specification

\[\left(5 \leq a \land a \leq 10\right) \land \left(0 \leq b \land b \leq 0.001\right)\]

Math

\[\begin{array}{l} \\ \left(a + b\right) \cdot \left(a + b\right) \end{array} \]

FPCore

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

C

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

Fortran

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

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Reproduce

herbie shell --seed 2024261 
(FPCore (a b)
  :name "Expression 4, p15"
  :precision binary64
  :pre (and (and (<= 5.0 a) (<= a 10.0)) (and (<= 0.0 b) (<= b 0.001)))

  :alt
  (! :herbie-platform default (+ (+ (+ (* b a) (* b b)) (* b a)) (* a a)))

  (* (+ a b) (+ a b)))

Please file a bug report with this information.

Backtrace

run-egg: cannot find proof; start and end are not equal. start: (*.f64 (fma.f64 #s(literal 2 binary64) a b) b) end: #s(literal 8 binary64)		L	C
add-soundiness	/home/nightlies/herbie/artem-batch-finish-rewrite/src/core/soundiness.rkt	140	0
extract!	/home/nightlies/herbie/artem-batch-finish-rewrite/src/core/mainloop.rkt	79	0
run-improve!	/home/nightlies/herbie/artem-batch-finish-rewrite/src/core/mainloop.rkt	45	0
get-alternatives/report	/home/nightlies/herbie/artem-batch-finish-rewrite/src/api/sandbox.rkt	186	0
(unnamed)	/home/nightlies/herbie/artem-batch-finish-rewrite/src/api/sandbox.rkt	282	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