/***
!Test
expected:
- !Result
  solution: !Solution
    s:
    - !!set {}
    - !!set {}
    - !!set {}
- !Result
  solution: !Solution
    s:
    - !!set {1}
    - !!set {1}
    - !Range 1..3
- !Result
  solution: !Solution
    s:
    - !Range 1..3
    - !!set {}
    - !!set {}
- !Result
  solution: !Solution
    s:
    - !!set {}
    - !!set {}
    - !Range 1..3
- !Result
  solution: !Solution
    s:
    - !!set {3}
    - !!set {3}
    - !!set {3}
***/

include "at_most1.mzn";

array[1..3] of var set of 1..3: s;
constraint at_most1(s);
constraint at_most1([{5,8}, {5}, {5, 6, 7}, {1, 4}]);
solve satisfy;

output ["s = array1d(1..3, ", show(s), ");\n"];