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Proof step 58 from proof fsync-pages-err (previous step)

# buf = VFS_PAGE_SIZE, asynced ↔ false, files0[m] = mkfile(m0, md, m1, content), pcache[datakey(m, n)] = mkpentry(true, buf), err = ESUCCESS, ino = m, key = datakey(ino, pageno), pageno = n, n * VFS_PAGE_SIZE < m2, datakey(m, n) ∈ pcache, m ∈ files0, err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ [err := EFAIL; n := n + 1] (err = ESUCCESS ∨ ⌊err⌋ ), key ∈ pcache

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 59:
# buf = VFS_PAGE_SIZE, asynced ↔ false, pcache[datakey(m, n)] = mkpentry(true, buf), files0[m] = mkfile(m0, md, m1, content), err = ESUCCESS, ino = m, key = datakey(ino, pageno), pageno = n, n * VFS_PAGE_SIZE < m2, m ∈ files0, datakey(m, n) ∈ pcache, err1 = ESUCCESS ∨ ⌊err1⌋ ⊦ [n := n + 1] (EFAIL = ESUCCESS ∨ ⌊EFAIL⌋ ), key ∈ pcache

Proof step 58 from proof fsync-pages-err (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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