predicate fzn_cost_mdd_reif(array[int] of var int: x,      % variables constrained by MDD
              int: N,                             % number of nodes    root is node 1
              array[int] of int: level,           % level of each node root is level 1, T is level length(x)+1
              int: E,                             % number of edges
              array[int] of int: from,            % edge leaving node  1..N
              array[int] of set of int: label,    % values of variable on edge
              array[int] of int: cost,            % cost of using edge
              array[int] of int: to,              % edge entering node 0..N where 0 = T node
              var int: totalcost,                 % total cost of path
              var bool: b                         % reification variable
             ) = 
    abort("Reified cost_mdd/9 is not supported.");