1predicate fzn_disjunctive_opt(array[int] of var opt int: s, 2 array[int] of var int: d) = 3 forall (i,j in index_set(d) where i<j) ( 4 absent(s[i]) \/ absent(s[j]) \/ 5 d[i]=0 \/ d[j]=0 \/ 6 deopt(s[i])+d[i] <= deopt(s[j]) \/ 7 deopt(s[j])+d[j] <= deopt(s[i]) 8 );