At: P causal switchable0 5 1 1 2 3 1 2 1
1. E: EventStruct
2. x: |E| List
3. y: |E| List
4. 
i:
||x||. 
j:||x||. j
i & is-send(E)(x[j]) & (x[j] =msg=(E) x[i])
5. i1: (||x||-1)
6. 
loc(E)(x[i1]) = loc(E)(x[(i1+1)])
7. is-send(E)(x[i1]) & is-send(E)(x[(i1+1)]) 
is-send(E)(x[i1]) & is-send(E)(x[(i1+1)])
8. y = swap(x;i1;i1+1)
9. i: ||y||
10. ||swap(x;i1;i1+1)|| = ||x|| 
11. ||y|| = ||x||
12. ||swap(y;i1;i1+1)|| = ||y||
13. (i1, i1+1) ||x||
||x||
14. is-send(E)(y[i])
15. j: ||x||
16. is-send(E)(x[j])
17. x[j] =msg=(E) x[((i1, i1+1)(i))]
18. swap(y;i1;i1+1) = x
x[j] =msg=(E) swap(x;i1;i1+1)[i]
By: RWO "swap_select" 0
Generated subgoals:None
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