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Proof step 667 from proof inv-truncate (previous step)

fs0[ri0[inodekey(m0)]].nlink = 0 ∧ m0 ≠ ROOT_INO ↔ inodekey(m0) ∈ ro, fs0[ri0[inodekey(m0)]].inode?, fo.inodes?, ro.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(fi), ri-inj(ri0), ubifs-cons(fs0, ri0, ro, fi, fo, log0), inodekey(ino) ∈ ri0, ri0[inodekey(m0)] ∈ fs0, inodekey(m0) ∈ ri0, m4 ≤ n0, ¬ fs0[ri0[inodekey(ino)]].directory → fs0[ri0[inodekey(ino)]].nsubdirs = 0 ⊦ m4 % VFS_PAGE_SIZE = 0, (adr2 = (m0 = ino ⊃ adr2;ri0[inodekey(ino)]) ⊃ inodenode(inodekey(m0), md0, false, fs0[ri0[inodekey(m0)]].nlink, fs0[ri0[inodekey(m0)]].nsubdirs, n0) ;(adr1 = (m0 = ino ⊃ adr2;ri0[inodekey(ino)]) ⊃ truncnode(inodekey(m0), m4);fs0[(m0 = ino ⊃ adr2;ri0[inodekey(ino)])]) ) .nsubdirs = 0, adr1 = adr2, m0 = 0, m0 = ino, (adr2 = (m0 = ino ⊃ adr2;ri0[inodekey(ino)]) ⊃ inodenode(inodekey(m0), md0, false, fs0[ri0[inodekey(m0)]].nlink, fs0[ri0[inodekey(m0)]].nsubdirs, n0) ;(adr1 = (m0 = ino ⊃ adr2;ri0[inodekey(ino)]) ⊃ truncnode(inodekey(m0), m4);fs0[(m0 = ino ⊃ adr2;ri0[inodekey(ino)])]) ) .directory, fs0[ri0[inodekey(m0)]].directory, buf-opt.some?, datakey(m0, m4 / VFS_PAGE_SIZE) ∈ ri0, adr1 ∈ fs0, adr2 ∈ fs0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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