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Proof step 402 from proof inv-truncate-buff-none-uncached (previous step)

files0[m] = mkfile(m1, md1, # links(m, dirs), content0), files = files0[m, mkfile(m1, md1, # links(m, dirs), content0 upto min(n, m2))], ino = inode.ino, inode = mkinode(m, md, false, # links(m, dirs), 0, n), inode0 = mkinode(m, md, false, # links(m, dirs), 0, m2), afs-cons(dirs, files0), dcache-cons(dcache, dirs, files0), icache-cons(icache, dirs, files0), pcache-cons(pcache, dirs, files0), synced(dirs, icache, pcache), m ∈ files0, ino ∈ dirs, asynced2 → synced(files0, icache, pcache) ⊦ [inode0 := (inode0.ino ∈ dirs[ino, dirs[ino].meta:= inode.meta] ⊃ mkinode (inode0.ino, dirs[ino, dirs[ino].meta:= inode.meta][inode0.ino].meta, true, dirs[ino, dirs[ino].meta:= inode.meta][inode0.ino].nlink, dirs[ino, dirs[ino].meta:= inode.meta][inode0.ino].nsubdirs, dirs[ino, dirs[ino].meta:= inode.meta][inode0.ino].size) ;mkinode(inode0.ino, files[inode0.ino].meta, false, files[inode0.ino].nlink, 0, files[inode0.ino].size) ); err := ESUCCESS; asynced := ?] ( afs-cons(dirs[ino, dirs[ino].meta:= inode.meta], files) → ⟪asynced4 := false; if err = ESUCCESS then let asynced = false in {icache_set#(inode0, asynced; err, icache); pcache_truncate#(inode0.ino, m2, n; err, pcache); if asynced4 then pcache_set#(inode0.ino, m2 / VFS_PAGE_SIZE, none.buf, asynced; err, pcache)}; if ¬ asynced4 ∨ err ≠ ESUCCESS then buf-opt := none⟫ ( icache-cons(icache, dirs[ino, dirs[ino].meta:= inode.meta], files) ∧ dcache-cons(dcache, dirs[ino, dirs[ino].meta:= inode.meta], files) ∧ pcache-cons(pcache, dirs[ino, dirs[ino].meta:= inode.meta], files) ∧ synced(dirs[ino, dirs[ino].meta:= inode.meta], icache, pcache) ∧ (asynced2 → synced(files, icache, pcache)))), datakey(m, m2 / VFS_PAGE_SIZE) ∈ pcache, ino ∈ files, m2 ≤ n ∧ m2 % VFS_PAGE_SIZE ≠ 0 ∧ m2 / VFS_PAGE_SIZE ∈ content0

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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