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Proof step 188 from proof overwrite-write-page-dirty (previous step)

files[ino0] = mkfile(m4, md0, m5, content), icache[ino0] = mkientry(boolvar, mkinode(m0, md, false, m1, m2, m3)), ino0 ∈ icache, ino ∈ files, ino0 ∈ files ⊦ (content ⊕ mkcontent(ino0, pcache))[n] = content[n], datakey(ino0, n) = datakey(ino, m), ino ∈ icache, datakey(ino0, n) ∈ pcache

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel> name: at-overwrite-content-new seq: ⊦ n ∈ content1 → (content0 ⊕ content1)[n] = content1[n] subst: [n, content1, content0] → [n, mkcontent(ino0, pcache), content] flags: <all paths>

Additional information

Used simplifier rules: at-overwrite-content-old: ⊦ ¬ n ∈ content1 → (content0 ⊕ content1)[n] = content0[n];%at-mkcontent: ⊦ mkcontent(ino, pcache)[n] = pcache[datakey(ino, n)].page;%in-mkcontent: ⊦ n ∈ mkcontent(ino, pcache) ↔ datakey(ino, n) ∈ pcache;% ⊦ ¬ key ∈ pcache → pcache[key] = (∅)[key]; (s) Used terms: n, mkcontent(ino0, pcache), content