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Proof step 832 from proof inv-truncate (previous step)

fs0[ri0[inodekey(ino)]].nlink = 0 ↔ inodekey(ino) ∈ ro, m0 = 0 ∧ m ≠ ROOT_INO ↔ inodekey(m) ∈ ro, fs0[ri0[inodekey(m)]] = inodenode(key, md, false, m0, m1, m2), ro.inodes?, fo.inodes?, file-node-cons(fs0, ri0), log-cons(log0, fs0), orphans-cons(fs0, ri0, ro), replay-cons-strong(fs0, ri0, ro, fi, fo, log0), ri-cons(ri0, fs0), ri-inj(ri0), ri-inj(fi), ubifs-cons(fs0, ri0, ro, fi, fo, log0), ri0[inodekey(m)] ∈ fs0, inodekey(m) ∈ ri0, inodekey(ino) ∈ ri0, buf-opt.some? → # buf-opt.buf = VFS_PAGE_SIZE ⊦ (adr2 = ri0[inodekey(ino)] ⊃ inodenode(inodekey(m), md0, false, m0, m1, n0) ;(adr1 = ri0[inodekey(ino)] ⊃ truncnode(inodekey(m), min(n0, m3));fs0[ri0[inodekey(ino)]]) ) .nlink = 0 ↔ inodekey(ino) ∈ ro, adr1 = adr2, adr2 = ri0[inodekey(ino)], ino = ROOT_INO, m = 0, m = ino, adr2 ∈ fs0, adr1 ∈ fs0, m3 ≤ n0 ∧ m3 % VFS_PAGE_SIZE ≠ 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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