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dekker.one
1include "path.mzn";
2
3predicate fzn_bounded_path_reif(array[int] of $$N: from, array[int] of $$N: to, array[int] of int: w,
4 var $$N: s, var $$N: t, array[$$N] of var bool: ns, array[int] of var bool: es, var int: K, var bool: b) =
5 b <-> ( path(from,to,s,t,ns,es) /\
6 K = sum(e in index_set(es))(es[e]*w[e]) );