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Proof step 4 from proof writepage-prepost (previous step)

files0 = files, inode = mkinode(m0, md0, boolvar, m1, m2, m3), ((m0 =>mkfile(n0, md, m, σ) * F))(files), afs-cons(dirs, files) ⊦ [afs_writepage#(inode, n, buf, dirs; err, files; asynced)] ( err = ESUCCESS ∧ ((m0 =>mkfile(n0, md, m, (σ to n * VFS_PAGE_SIZE) + ⌜buf⌝ + (σ from VFS_PAGE_SIZE * n + VFS_PAGE_SIZE)) * F))(files) ∨ ⌊err⌋ ∧ files0 = files)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
files0 = files, ((m0 =>mkfile(n0, md, m, σ) * F))(files), afs-cons(dirs, files) ⊦ [afs_writepage#(mkinode(m0, md0, boolvar, m1, m2, m3), n, buf, dirs; err, files; asynced)] ( err = ESUCCESS ∧ ((m0 =>mkfile(n0, md, m, (σ to n * VFS_PAGE_SIZE) + ⌜buf⌝ + (σ from VFS_PAGE_SIZE * n + VFS_PAGE_SIZE)) * F))(files) ∨ ⌊err⌋ ∧ files0 = files)

Proof step 4 from proof writepage-prepost (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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