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Proof step 24 from proof inv-read (previous step)

isdir ↔ false, of[fd] = mkfile(m, mode, m0), err = ESUCCESS, err0 = ESUCCESS, ino = m, ino0 = m0 + n, ino1 = m0, ino3 = 0, dom of < ino2, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of, ino1 ≤ getinode(ino, dirs, files).size, n ≤ # buf, mode ≠ MODE_R → fd ∈ of ⊦ ⟪vfs_read_loop#(ino1, ino0, getinode(ino, dirs, files), isdir, dirs, files, asynced; buf, ino3, err); if ino3 ≠ 0 then err := ESUCCESS; of[fd].pos := of[fd].pos + ino3; n := ino3⟫ (of-cons(of, dirs, files) ∧ dom of < ino2), mode ≠ MODE_R ∧ mode ≠ MODE_RW

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
of[fd] = mkfile(m, mode, m0), err = ESUCCESS, ino3 = 0, dom of < ino2, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of, n ≤ # buf, m0 ≤ files[m].size ⊦ ⟪vfs_read_loop#(m0, m0 + n, mkinode(m, files[m].meta, false, files[m].nlink, 0, files[m].size), false, dirs, files, asynced; buf, ino3, err); if ino3 ≠ 0 then err := ESUCCESS; of[fd].pos := of[fd].pos + ino3; n := ino3⟫ (of-cons(of, dirs, files) ∧ dom of < ino2), mode ≠ MODE_R ∧ mode ≠ MODE_RW

Rule argument

Additional information

Used simplifier rules: ⊦ mkinode(m, md, boolvar, m0, m1, m2).size = m2; (s)%⊦ of-cons(of, dirs, files) ∧ fd ∈ of ∧ of[fd] = mkfile(ino, mode, n) ∧ afs-cons(dirs, files) → ¬ ino ∈ dirs; (s)%⊦ getinode(ino, dirs, files) = (ino ∈ dirs ⊃ mkinode (ino, dirs[ino].meta, true, dirs[ino].nlink, dirs[ino].nsubdirs, dirs[ino].size) ;mkinode (ino, files[ino].meta, false, files[ino].nlink, 0, files[ino].size) ); (s)