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Proof step 37 from proof refine-change (previous step)

LEB_SIZE = n0 + n, n1 < # avols[default-volid], m < # avols[default-volid], ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), is-aligned(n, EB_PAGE_SIZE), default-volid ∈ avols, n ≤ # buf, n ≤ LEB_SIZE ⊦ abs(avols[default-volid])[n1] = abs(avols[default-volid][m, mapped(subarray(buf, 0, n) + mkempbuf(n0), n)])[n1], n1 = m

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 38:
LEB_SIZE = n0 + n, m < # avols[default-volid], n1 < # avols[default-volid], ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), is-aligned(n, EB_PAGE_SIZE), default-volid ∈ avols, n ≤ LEB_SIZE, n ≤ # buf ⊦ abs(avols[default-volid][n1]) = abs(avols[default-volid][m, mapped(subarray(buf, 0, n) + mkempbuf(n0), n)])[n1], n1 = m

Rule argument

Additional information

Used simplifier rules: ⊦ n < # evol → abs(evol)[n] = abs(evol[n]); (s)