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Proof step 81 from proof inv-truncate (previous step)

VFS_PAGE_SIZE = n0 + m2 % VFS_PAGE_SIZE, files1[m] = mkfile(m1, md1, # links(m, dirs), content0), files = files0, files0 = files1 [m, mkfile(m1, md1, # links(m, dirs), content0[m2 / VFS_PAGE_SIZE, fill(content0[m2 / VFS_PAGE_SIZE], zero, m2 % VFS_PAGE_SIZE, n0)] upto m2) ], ino = inode.ino, inode = mkinode(m, md, false, # links(m, dirs), 0, n), inode0 = mkinode(m, md, false, # links(m, dirs), 0, m2), afs-cons(dirs, files1), afs-cons (dirs, files1 [m, mkfile(m1, md1, # links(m, dirs), content0[m2 / VFS_PAGE_SIZE, fill(content0[m2 / VFS_PAGE_SIZE], zero, m2 % VFS_PAGE_SIZE, n0)] upto m2) ]), ino ∈ files, m2 / VFS_PAGE_SIZE ∈ content0, m ∈ files1, m2 ≤ n ⊦ [files[ino].size := inode.size; files[ino].meta := inode.meta] ( afs-cons(dirs, files) → ⟪inode0 := (inode0.ino ∈ dirs ⊃ mkinode(inode0.ino, dirs[inode0.ino].meta, true, dirs[inode0.ino].nlink, dirs[inode0.ino].nsubdirs, dirs[inode0.ino].size) ;mkinode(inode0.ino, files[inode0.ino].meta, false, files[inode0.ino].nlink, 0, files[inode0.ino].size) ); err := ESUCCESS; asynced := ?⟫ true), m2 % VFS_PAGE_SIZE = 0, buf-opt.some?

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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