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Proof step 295 from proof inv-write_inode (previous step)

# files[key.ino].content[key.part] = VFS_PAGE_SIZE, (key.ino = m ⊃ (files[key.ino].meta:= md).size:= m2;files[key.ino]) = mkfile(m5, md1, m6, content), pcache[key] = mkpentry(false, files[key.ino].content[key.part]), icache[m] = mkientry(boolvar, mkinode(m0, md0, boolvar0, m1, m3, m4)), key.data?, afs-cons(dirs, files[m, (files[m].meta:= md).size:= m2]), afs-cons(dirs, files), synced(dirs, icache, pcache), synced(files, icache, pcache), key.part ∈ files[key.ino].content, key ∈ pcache, m ∈ files, m ∈ icache, key.ino ∈ files, ∀ key0. key0 ∈ pcache → key0.data? ∧ # pcache[key0].page = VFS_PAGE_SIZE ∧ key0.ino ∈ files ∧ (¬ pcache[key0].dirty → key0.part ∈ files[key0.ino].content ∧ pcache[key0].page = files[key0.ino].content[key0.part]) ⊦ key.part ∈ content ∧ files[key.ino].content[key.part] = content[key.part]

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 296:
# files[m7].content[m8] = VFS_PAGE_SIZE, (m7 = m ⊃ (files[m7].meta:= md).size:= m2;files[m7]) = mkfile(m5, md1, m6, content), icache[m] = mkientry(boolvar, mkinode(m0, md0, boolvar0, m1, m3, m4)), pcache[key] = mkpentry(false, files[m7].content[m8]), key = datakey(m7, m8), key.data?, afs-cons(dirs, files), afs-cons(dirs, files[m, (files[m].meta:= md).size:= m2]), synced(files, icache, pcache), synced(dirs, icache, pcache), m7 ∈ files, m ∈ icache, m ∈ files, key ∈ pcache, m8 ∈ files[m7].content, ∀ key0. key0 ∈ pcache → key0.data? ∧ # pcache[key0].page = VFS_PAGE_SIZE ∧ key0.ino ∈ files ∧ (¬ pcache[key0].dirty → key0.part ∈ files[key0.ino].content ∧ pcache[key0].page = files[key0.ino].content[key0.part]) ⊦ m8 ∈ content ∧ files[m7].content[m8] = content[m8]

Rule argument

spec: key name: elim-02 seq: ⊦ key.data? → (m = key.ino ∧ m0 = key.part ↔ key = datakey(m, m0)) subst: [key, m, m0] → [key, m7, m8]

Additional information

Used simplifier rules: ⊦ key.data? → (m = key.ino ∧ m0 = key.part ↔ key = datakey(m, m0)); (elim) Used terms: key, m7, m8