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Proof step 248 from proof inv-truncate-buff-some (previous step)

# buf-opt.buf = VFS_PAGE_SIZE, asynced ↔ false, files0[m0] = mkfile(m1, md1, # links(m0, dirs), content0), err = ESUCCESS, inode = mkinode(m0, md0, false, # links(m0, dirs), 0, m5), buf-opt.some?, afs-cons(dirs, files0), afs-cons(dirs, files0[m0, mkfile(m5, md0, # links(m0, dirs), content0 upto min(m5, m2))]), dcache-cons(dcache, dirs, files0), icache-cons(icache, dirs, files0), pcache-cons(pcache, dirs, files0), synced(dirs, icache, pcache), m0 ∈ files0, asynced1 → synced(files0, icache, pcache) ⊦ ⟪icache[inode.ino] := mkientry(asynced, inode); pcache_truncate#(m0, m2, m5; err, pcache); inode := mkinode(m0, md0, false, # links(m0, dirs), 0, m5); ino := m0; files := files0[m0, mkfile(m1, md1, # links(m0, dirs), content0 upto min(m5, m2))]; skip; skip⟫ ( icache-cons(icache, dirs, files[ino, (ino ∈ files ⊃ files[ino].size:= inode.size;files[ino]).meta:= inode.meta]) ∧ dcache-cons(dcache, dirs, files[ino, (ino ∈ files ⊃ files[ino].size:= inode.size;files[ino]).meta:= inode.meta]) ∧ pcache-cons(pcache, dirs, files[ino, (ino ∈ files ⊃ files[ino].size:= inode.size;files[ino]).meta:= inode.meta]) ∧ synced(dirs, icache, pcache) ∧ (asynced1 → synced(files[ino, (ino ∈ files ⊃ files[ino].size:= inode.size;files[ino]).meta:= inode.meta], icache, pcache))), m2 ≤ m5 ∧ m2 % VFS_PAGE_SIZE ≠ 0

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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