1sink: "{ [S_2[] -> __pet_ref_4[]] -> a[] }"
2must_source: "{ [S_0[] -> __pet_ref_0[]] -> a[]; [S_2[] -> __pet_ref_3[]] -> b[]; [S_1[] -> __pet_ref_1[]] -> a[]; [S_1[] -> __pet_ref_2[]] -> a[] }"
3may_source: "{ [S_1[] -> __pet_ref_2[]] -> a[]; [S_1[] -> __pet_ref_1[]] -> a[]; [S_2[] -> __pet_ref_3[]] -> b[]; [S_0[] -> __pet_ref_0[]] -> a[] }"
4schedule:
5  domain: "{ [S_1[] -> __pet_ref_1[]]; [S_1[] -> __pet_ref_2[]]; [S_2[] -> __pet_ref_3[]]; [S_0[] -> __pet_ref_0[]]; [S_2[] -> __pet_ref_4[]] }"
6  child:
7    sequence:
8    - filter: "{ [S_0[] -> __pet_ref_0[]] }"
9    - filter: "{ [S_1[] -> __pet_ref_1[]]; [S_1[] -> __pet_ref_2[]] }"
10    - filter: "{ [S_2[] -> __pet_ref_3[]]; [S_2[] -> __pet_ref_4[]] }"
11