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Proof step 87 from proof eq-io-truncate (previous step)

# buf-opt.buf = VFS_PAGE_SIZE, asynced ↔ boolvar2, boolvar ↔ boolvar1, VFS_PAGE_SIZE = n1 + m2 % VFS_PAGE_SIZE, files1[m] = mkfile(m0, md0, m1, content0), files1[m, mkfile(n0, md, m1, content0[m2 / VFS_PAGE_SIZE, fill(buf-opt.buf, zero, m2 % VFS_PAGE_SIZE, n1)] upto m2)] = files0, dirs = dirs1, dirs0 = dirs1, files = files1, inode = inode0, inode0 = mkinode(m, md, false, m1, 0, m2), n = n0, pageno1 = m2 / VFS_PAGE_SIZE, some(fill(buf-opt.buf, zero, m2 % VFS_PAGE_SIZE, n1)) = buf-opt0, buf-opt.some?, m ∈ files1, m2 ≤ n0 ⊦ ⟨abort⟩ ( buf-opt = buf-opt0 ∧ inode = (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) ) ∧ boolvar ∧ err = ESUCCESS ∧ dirs = dirs0 ∧ files = files0), m2 % VFS_PAGE_SIZE = 0, VFS_PAGE_SIZE = 0, pre-truncate(inode, n, pageno1, buf-opt, dirs, files)

Heuristic symbolic execution applied rule abort right

And obtained the following new goals

Rule argument

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