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Proof step 1513 from proof refine-truncate (previous step)

boolvar ↔ boolvar2, boolvar1 ↔ boolvar2, fs[ri[inodekey(m)]] = inodenode(key, md0, false, m0, 0, m3), buf-opt = buf-opt0, buf-opt1 = buf-opt0, dirs = abs-dirs(fs, ri), err = err1, files = abs-files(fs, ri), inode = p_inode, p_inode = mkinode(m, md, false, m0, 0, m2), pageno1 = m2 / VFS_PAGE_SIZE, 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), ri[inodekey(m)] ∈ fs, inodekey(m) ∈ ri, ⌊err0⌋ , asynced → boolvar0, buf-opt0.some? → # buf-opt0.buf = VFS_PAGE_SIZE ⊦ ⟨if pre-truncate(inode, n, pageno1, buf-opt, dirs, files) then let pageno0 = 0, pageno = 0 in afs_truncate_internal#(n, pageno1; inode, buf-opt, pageno0, pageno, boolvar, err, dirs, files; asynced) else abort⟩ ( dirs = abs-dirs(fs, ri) ∧ files = abs-files(fs, ri) ∧ (asynced → boolvar4) ∧ buf-opt1 = buf-opt ∧ mkinode(m, md, false, m0, 0, m2) = inode ∧ (boolvar1 ↔ boolvar) ∧ err0 = err), VFS_PAGE_SIZE = 0, m2 ≤ n ∧ m2 % VFS_PAGE_SIZE ≠ 0

Heuristic conditional right split applied rule if right

And obtained the following new goals

Rule argument

pos: right 1

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