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Proof step 3 from proof truncate-smaller (previous step)

files0 = files, inode = mkinode(m, md, boolvar, m0, m1, m2), pageno = m2 / VFS_PAGE_SIZE, buf-opt.none?, afs-cons(dirs, files), n ≤ m2 ⊦ [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 n ∧ 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 )

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
buf-opt = none, files0 = files, inode = mkinode(m, md, boolvar, m0, m1, m2), afs-cons(dirs, files), n ≤ m2 ⊦ [afs_truncate#(n, m2 / VFS_PAGE_SIZE; buf-opt, inode, bv, 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 )

Rule argument

Additional information

Used simplifier rules: ⊦ buf-opt.none? ↔ buf-opt = none; (s)