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Proof step 693 from proof inv-truncate (previous step)

fs[ri[inodekey(m)]].nlink = 0 ∧ m ≠ ROOT_INO ↔ inodekey(m) ∈ ro, fs[ri[inodekey(m)]].inode?, ro.inodes?, fo.inodes?, file-node-cons(fs, ri), log-cons(log, fs), orphans-cons(fs, ri, ro), replay-cons-strong(fs, ri, ro, fi, fo, log), ri-cons(ri, fs), ri-inj(ri), ri-inj(fi), ubifs-cons(fs, ri, ro, fi, fo, log), inodekey(m) ∈ ri, ri[inodekey(m)] ∈ fs, m2 ≤ n ⊦ m2 % VFS_PAGE_SIZE = 0, m = 0, fs[ri[inodekey(m)]].directory, buf-opt.some?, datakey(m, m2 / VFS_PAGE_SIZE) ∈ ri, ∃ err0. ⌊err0⌋

Heuristic quantifier closing applied rule exists right

And closed the goal!

Rule argument

pos: right 6 terms: ECOMMIT

Additional information

Used simplifier rules: ⊦ ⌊ECOMMIT⌋ ; (s) Used terms: ECOMMIT