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Proof step 292 from proof inv-write (previous step)

m5 + n1 = m5 / VFS_PAGE_SIZE * VFS_PAGE_SIZE + VFS_PAGE_SIZE, of[fd] = mkfile(m, mode, m0), files1[m] = mkfile(m5, md, # links(m, dirs), content0), m5 = n2 + m5 / VFS_PAGE_SIZE * VFS_PAGE_SIZE, ino4 ≠ 0, n ≠ 0, n2 ≠ 0, dom of < ino3, m5 < m0 + ino4, afs-cons(dirs, files), afs-cons(dirs, files1), of-cons(of, dirs, files), of-cons(of, dirs, files1), m ∈ files1, m5 / VFS_PAGE_SIZE ∈ content0, fd ∈ of, m5 % VFS_PAGE_SIZE + n1 ≤ VFS_PAGE_SIZE, n ≤ # buf0, n2 + n1 ≤ VFS_PAGE_SIZE, ⌊err0⌋ ⊦ [skip; if err0 ≠ ESUCCESS then ino4 := (m0 ≤ m5 ⊃ m5 - m0;0), err0 := ESUCCESS; of[fd].pos := m0 + ino4] (of-cons(of, dirs, files) ∧ dom of < ino3), err1 = ESUCCESS ∧ ¬ isdir, mode ≠ MODE_W ∧ mode ≠ MODE_RW

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Proof step 293:
m5 + n1 = m5 / VFS_PAGE_SIZE * VFS_PAGE_SIZE + VFS_PAGE_SIZE, files1[m] = mkfile(m5, md, # links(m, dirs), content0), of[fd] = mkfile(m, mode, m0), m5 = n2 + m5 / VFS_PAGE_SIZE * VFS_PAGE_SIZE, m5 < m0 + ino4, dom of < ino3, afs-cons(dirs, files1), afs-cons(dirs, files), of-cons(of, dirs, files1), of-cons(of, dirs, files), fd ∈ of, m5 / VFS_PAGE_SIZE ∈ content0, m ∈ files1, n2 + n1 ≤ VFS_PAGE_SIZE, n ≤ # buf0, m5 % VFS_PAGE_SIZE + n1 ≤ VFS_PAGE_SIZE, ⌊err0⌋ ⊦ [if err0 ≠ ESUCCESS then ino4 := (m0 ≤ m5 ⊃ m5 - m0;0), err0 := ESUCCESS; of[fd].pos := m0 + ino4] (of-cons(of, dirs, files) ∧ dom of < ino3), ino4 = 0, n = 0, n2 = 0, mode ≠ MODE_W ∧ mode ≠ MODE_RW, err1 = ESUCCESS ∧ ¬ isdir

Proof step 292 from proof inv-write (previous step)

Heuristic symbolic execution applied rule skip right

And obtained the following new goals

Rule argument

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