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Proof step 112 from proof eq-io-truncate (previous step)

⟨files[ino].size := inode.size; files[ino].meta := inode.meta⟩ (dirs = dirs0 ∧ files = files0), VFS_PAGE_SIZE = n1 + m2 % VFS_PAGE_SIZE, files2[m] = mkfile(m3, md1, m4, content), dirs = dirs1, files = files1, files1 = files2[m, mkfile(m3, md1, m4, content[m2 / VFS_PAGE_SIZE, fill(content[m2 / VFS_PAGE_SIZE], zero, m2 % VFS_PAGE_SIZE, n1)] upto m2)], ino = inode.ino, inode = mkinode(m, md, false, m4, 0, n0), inode0 = mkinode(m, md, false, m4, 0, m2), m2 / VFS_PAGE_SIZE ∈ content, m ∈ files2, ino ∈ files, VFS_PAGE_SIZE ≤ # content[m2 / VFS_PAGE_SIZE], m2 ≤ n0 ⊦ ⟨afs_truncate#(n0, m2 / VFS_PAGE_SIZE; buf-opt, inode0, boolvar1, err, dirs1, files2, boolvar2)⟩ ( buf-opt = some(fill(content[m2 / VFS_PAGE_SIZE], zero, m2 % VFS_PAGE_SIZE, n1)) ∧ inode0 = (m ∈ dirs0 ⊃ mkinode(m, dirs0[m].meta, true, dirs0[m].nlink, dirs0[m].nsubdirs, dirs0[m].size) ;mkinode(m, files0[m].meta, false, files0[m].nlink, 0, files0[m].size) ) ∧ boolvar1 ∧ err = ESUCCESS ∧ dirs1 = dirs0 ∧ files2 = files0), m2 % VFS_PAGE_SIZE = 0, buf-opt.some?

Heuristic symbolic execution applied rule assign left

And obtained the following new goals

Rule argument

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