/* Defining polynomial */
x^2 + 5
/* Minimal vectors */
[
    <w + 1, -2>,
    <1, 0>,
    <2, w - 1>,
    <2, w>,
    <0, 1>,
    <-w, 2>,
    <1, -1>,
    <-w + 1, w + 1>
]
/* Voronoi top cells */
[
    { 1, 2, 3, 4, 5, 6 },
    { 1, 2, 3, 5, 7, 8 }
]
/* Faces of top cells */
[
    [
        { 1, 3, 4, 6 },
        { 1, 2, 3, 5 },
        { 2, 4, 5, 6 },
        { 3, 4, 5 },
        { 1, 2, 6 }
    ],
    [
        { 1, 2, 3, 5 },
        { 1, 2, 7, 8 },
        { 3, 5, 7, 8 },
        { 1, 3, 8 },
        { 2, 5, 7 }
    ]
]
/* Order of PGL_2(O) stabilizers of Voronoi top cells */
[ 2, 3 ]
/* GAP id of GL_2(O) stabilizers of Voronoi top cells */
[ <4, 1>, <6, 2> ]