1sink: "{ S[] -> a[] }"
2must_source: "{ T[i] -> a[] : 0 <= i <= 9 }"
3schedule:
4  domain: "{ T[i]; S[] }"
5  child:
6    sequence:
7    - filter: "{ T[i] }"
8      child:
9        schedule: "[{ T[i] -> [(i)] }]"
10    - filter: "{ S[] }"
11