The data included above signifies the following,
att The number of attractor states (does not apply to subtrees)
nodes The number of nodes whose pre-images have been computed
edges The total number of edges, including edges to nodes that have not been computed.
For a complete basin (or field), nodes=edges. For a complete subtree, nodes=edges+1.
For an incomplete attractor basin, (i.e. if interrupted), nodes<edges.
max in-degree The largest in-degree found. The maximum equals the cut-off limit.
gE The frequency of garden-of-Eden states (in-degree 0), usually the greatest frequency.