inf_loop2.erl:122: The pattern [{_, LNorms}] can never match the type []
inf_loop2.erl:124: The pattern [{LinksA, LNormA}, {LinksB, LNormB}] can never match the type []
inf_loop2.erl:132: The pattern [{_, Norm} | _] can never match the type []
inf_loop2.erl:74: The call gb_trees:get(Edge::any(),Etab::array:array(_)) does not have an opaque term of type gb_trees:tree(_,_) as 2nd argument