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Proof step 12 from proof ubifs-parent-dir (previous step)

fs[ri[inodekey(ino)]].key = inodekey(ino), fs[ri[inodekey(ino)]].inode?, fo.inodes?, ro.inodes?, node-closed(fs[ri[inodekey(ino)]], ri, fs, ro), node-closed(fs[ri[dentrykey(ino, str)]], ri, fs, ro), dentrykey(ino, str) ∈ ri, inodekey(ino) ∈ ri, ri[inodekey(ino)] ∈ fs, ri[dentrykey(ino, str)] ∈ fs, fo ⊆ dom fi, ro ⊆ dom ri, ∀ key. key ∈ ri → ri[key] ∈ fs ∧ key-cons(key, fs[ri[key]]), ∀ key. key ∈ ri → ri[key] ∈ fs ∧ node-closed(fs[ri[key]], ri, fs, ro), ∀ adr. adr ∈ log → adr ∈ fs ∧ node-cons(fs[adr].key, fs[adr]) ⊦ fs[ri[inodekey(ino)]].directory, dups(log), inodekey(0) ∈ ri

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Rule argument

spec: node name: elim-03 seq: ⊦ nd.inode? → ( ( ( ( (key = nd.key ∧ md = nd.meta) ∧ (boolvar ↔ nd.directory)) ∧ m = nd.nlink) ∧ m0 = nd.nsubdirs) ∧ m1 = nd.size ↔ nd = inodenode(key, md, boolvar, m, m0, m1)) subst: [nd, key, md, boolvar, m, m0, m1] → [fs[ri[inodekey(ino)]], key0, md, boolvar, m, m0, m1]

Additional information

Used simplifier rules: ⊦ nd.inode? → ( ( ( ( (key = nd.key ∧ md = nd.meta) ∧ (boolvar ↔ nd.directory)) ∧ m = nd.nlink) ∧ m0 = nd.nsubdirs) ∧ m1 = nd.size ↔ nd = inodenode(key, md, boolvar, m, m0, m1)); (elim) Used terms: fs[ri[inodekey(ino)]], key0, md, boolvar, m, m0, m1