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Proof step 7 from proof truncate-smaller (previous step)

files0 = files, inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), pre-truncate(mkinode(m, md, boolvar, m0, m1, m2), n, m2 / VFS_PAGE_SIZE, none, dirs, files), n ≤ m2 ⊦ [let old_ino0 = 0, old_ino = 0 in {buf-opt := none; afs_truncate_internal#(n, m2 / VFS_PAGE_SIZE; inode, buf-opt, old_ino0, old_ino, asynced0, err, dirs, files; asynced)}] (err = ESUCCESS ⊃ files[inode.ino].content.stream to files[inode.ino].size = files0[inode.ino].content.stream to files[inode.ino].size ∧ inode.ino ∈ files ∧ n = files[inode.ino].size ∧ files0[inode.ino].nlink = files[inode.ino].nlink ∧ files0 -- inode.ino = files -- inode.ino ;⌊err⌋ ∧ files0 = files ), VFS_PAGE_SIZE = 0

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Rule argument

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