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Proof step 58 from proof write-block-inv (previous step)

VFS_PAGE_SIZE = n3 + (n0 + n2) % VFS_PAGE_SIZE, write-inv(n0, n1, inode, buf1, n2, dirs, files0, files1), n0 + n2 ≤ n1, err = ESUCCESS ∧ buf0 = getpage((n0 + n2) / VFS_PAGE_SIZE, files1[inode.ino].content) ∨ ⌊err⌋ ⊦ [n := min(n1 - n0 + n2, n3); if err = ESUCCESS then n2 := n2 + n] write-inv(n0, n1, inode, buf1, n2, dirs, files0, files1), err = ESUCCESS, min(n1 - n0 + n2, n3) = 0

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 59:
VFS_PAGE_SIZE = n3 + (n0 + n2) % VFS_PAGE_SIZE, n = min(n1 - n0 + n2, n3), write-inv(n0, n1, inode, buf1, n2, dirs, files0, files1), n0 + n2 ≤ n1, n1 ≥ n0 + n2, err = ESUCCESS ∧ buf0 = getpage((n0 + n2) / VFS_PAGE_SIZE, files1[inode.ino].content) ∨ ⌊err⌋ ⊦ [if err = ESUCCESS then n2 := n2 + n] write-inv(n0, n1, inode, buf1, n2, dirs, files0, files1), err = ESUCCESS, min(n1 - n0 + n2, n3) = 0

Proof step 58 from proof write-block-inv (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information