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Theorem refine-truncate

pre-truncate(inode, n, pageno, buf-opt, dirs, files), dirs = abs-dirs(fs, ri), files = abs-files(fs, ri), orphans(dirs, files) = abs-keys(ro), asynced → boolvar, afs-cons(dirs, files), ubifs-cons(fs, ri, ro, fi, fo, log), replay-cons-strong(fs, ri, ro, fi, fo, log), file-node-cons(fs, ri), orphans-cons(fs, ri, ro), ri-inj(ri), ri-inj(fi), log-cons(log, fs), ro.inodes?, fo.inodes?, buf-opt = buf-opt0, inode = p_inode, boolvar0 ↔ boolvar1, err = err0 ⊦ ⟪aubifs_truncate#(n, pageno, fi, ro, fo; buf-opt, inode, boolvar0, err, ri, fs, log, boolvar)⟫ ⟨afs_truncate#(n, pageno; buf-opt0, p_inode, boolvar1, err0, dirs, files, asynced)⟩ ( (dirs = abs-dirs(fs, ri) ∧ files = abs-files(fs, ri) ∧ orphans(dirs, files) = abs-keys(ro) ∧ (asynced → boolvar)) ∧ buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar0 ↔ boolvar1) ∧ err = err0)

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