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Proof step 150 from proof refine-evict (previous step)

# links(m, cache_dirs) = 0, (∅)[m] = mkientry(boolvar2, mkinode(m7, md3, boolvar1, m8, m9, m10)), (∅)[ino] = mkientry(boolvar0, mkinode(m2, md, boolvar, m3, m4, m5)), cache_files[m] = mkfile(m0, md0, 0, content), cache_files[ino] = mkfile(m6, md2, # links(ino, cache_dirs), content1), afs-cons(cache_dirs, (cache_files ⊕ cache_pcache) ⊕ cache_icache), afs-cons(cache_dirs, cache_files), dcache-cons(cache_dcache, cache_dirs, cache_files), icache-cons(cache_icache, cache_dirs, cache_files), pcache-cons(cache_pcache, cache_dirs, cache_files), synced(cache_dirs, cache_icache, cache_pcache), ino ∈ cache_files, m ∈ cache_files, n ∈ content1 ⊕ mkcontent(ino, evict(m, cache_pcache)), n ∈ content1, cache_sync → synced(cache_files, cache_icache, cache_pcache), ∀ key. key ∈ cache_pcache → key.data? ⊦ content1[n] = (content1 ⊕ mkcontent(ino, evict(m, cache_pcache)))[n], ino = m, m = ROOT_INO, ino ∈ cache_icache, m ∈ cache_dirs, m ∈ cache_icache, datakey(ino, n) ∈ cache_pcache

Heuristic use patterns applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: cache-base name: at-overwrite-content-new seq: ⊦ n ∈ content1 → (content0 ⊕ content1)[n] = content1[n] subst: [n, content1, content0] → [n, mkcontent(ino, evict(m, cache_pcache)), content1] flags: <all paths>

Additional information

Used simplifier rules: ⊦ mkcontent(ino, pcache)[n] = pcache[datakey(ino, n)].page; (s)% ⊦ n ∈ mkcontent(ino, pcache) ↔ datakey(ino, n) ∈ pcache; (s)%⊦ ino ≠ ino0 → ( datakey(ino, pageno) ∈ evict(ino0, pcache) ↔ datakey(ino, pageno) ∈ pcache); (s)% ⊦ ¬ n ∈ content1 → (content0 ⊕ content1)[n] = content0[n]; (s) Used terms: n, mkcontent(ino, evict(m, cache_pcache)), content1