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Proof step 4 from proof refine-truncate (previous step)

boolvar0 ↔ boolvar1, ¬ boolvar2, buf-opt = buf-opt0, dirs = abs-dirs(fs, ri), err = err0, files = abs-files(fs, ri), inode = p_inode, m0 = fs[ri[inodekey(m)]].nlink, m1 = 0, p_inode = mkinode(m, md, boolvar2, m0, m1, m2), ro = orphans(fs, ri), orphans(fs, ri).inodes?, fo.inodes?, afs-cons(abs-dirs(fs, ri), abs-files(fs, ri)), file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, orphans(fs, ri)), replay-cons-strong(fs, ri, orphans(fs, ri), fi, fo, log), ri-inj(ri), ri-inj(fi), ubifs-cons(fs, ri, orphans(fs, ri), fi, fo, log), inodekey(m) ∈ ri, asynced → boolvar, buf-opt0.some? → # buf-opt0.buf = VFS_PAGE_SIZE ⊦ ⟪aubifs_truncate#(n, m2 / VFS_PAGE_SIZE, fi, orphans(fs, ri), fo; buf-opt, inode, boolvar0, err, ri, fs, log, boolvar)⟫ ⟨afs_truncate#(n, m2 / VFS_PAGE_SIZE; buf-opt0, p_inode, boolvar1, err0, dirs, files, asynced)⟩ ( dirs = abs-dirs(fs, ri) ∧ files = abs-files(fs, ri) ∧ orphans(abs-dirs(fs, ri), abs-files(fs, ri)) = abs-keys(ro) ∧ (asynced → boolvar) ∧ buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar0 ↔ boolvar1) ∧ err = err0), fs[ri[inodekey(m)]].directory

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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