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Proof step 26 from proof inv-write-buf (previous step)

# lpt = # avol, m0 = m, n0 = n, awbuf-inv(avol, bleb), # avol[bleb.leb].data + n ≤ LEB_SIZE, n ≤ # buf, bleb ≠ nobuffer → avol[bleb.leb].mapped? ∧ bleb.leb < # avol ∧ bleb.isbuf? ⊦ ⟪abort⟫ (awbuf-inv(avol, bleb) ∧ # lpt = # avol), bleb = nobuffer, bleb ≠ nobuffer ∧ # avol[bleb.leb].data + n0 ≤ LEB_SIZE ∧ n0 ≤ # buf

Heuristic symbolic execution applied rule abort right

And obtained the following new goals

Proof step 27:
# lpt = # avol, m0 = m, n0 = n, awbuf-inv(avol, bleb), n ≤ # buf, # avol[bleb.leb].data + n ≤ LEB_SIZE, bleb ≠ nobuffer → avol[bleb.leb].mapped? ∧ bleb.leb < # avol ∧ bleb.isbuf? ⊦ bleb = nobuffer, bleb ≠ nobuffer ∧ # avol[bleb.leb].data + n0 ≤ LEB_SIZE ∧ n0 ≤ # buf

Proof step 26 from proof inv-write-buf (previous step)

Heuristic symbolic execution applied rule abort right

And obtained the following new goals

Rule argument

Additional information