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Proof step 1 from proof truncate-greater (conclusion)

afs-cons(dirs, files), files0 = files, inode.size < n, pageno = inode.size / VFS_PAGE_SIZE, buf-opt.none?, m = inode.size ⊦ [afs_truncate#(n, pageno; buf-opt, inode, bv, err, dirs, files, asynced)] (err = ESUCCESS ⊃ files[inode.ino].content.stream to n = (files0[inode.ino].content.stream to m) + (σ⊥ to (n - m)) ∧ 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 )

System applied rule normalize

And obtained the following new goals

Proof step 2:
files0 = files, m = inode.size, pageno = inode.size / VFS_PAGE_SIZE, buf-opt.none?, inode.size < n, afs-cons(dirs, files) ⊦ [afs_truncate#(n, pageno; buf-opt, inode, bv, err, dirs, files, asynced)] (err = ESUCCESS ⊃ files[inode.ino].content.stream to n = (files0[inode.ino].content.stream to m) + (σ⊥ to (n - m)) ∧ 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 )

Proof step 1 from proof truncate-greater (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

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