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Proof step 391 from proof inv-truncate-buff-some (previous step)

# buf-opt.buf = VFS_PAGE_SIZE, files[m] = mkfile(m1, md1, # links(m, dirs), content0), buf-opt.some?, afs-cons(dirs, files), dcache-cons(dcache, dirs, files), icache-cons(icache, dirs, files), pcache-cons(pcache, dirs, files), synced(dirs, icache, pcache), m ∈ files, ⌊err0⌋ , asynced1 → synced(files, icache, pcache) ⊦ [err := err0; asynced := ?] ⟪if err = ESUCCESS then let asynced = false in {icache_set#(mkinode(m, md, false, # links(m, dirs), 0, m2), asynced; err, icache); pcache_truncate#(m, m2, n; err, pcache); if asynced0 then pcache_set#(m, m2 / VFS_PAGE_SIZE, buf-opt.buf, asynced; err, pcache)}; skip⟫ ( icache-cons(icache, dirs, files) ∧ pcache-cons(pcache, dirs, files) ∧ synced(dirs, icache, pcache) ∧ (asynced1 → synced(files, icache, pcache)))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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