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Proof step 28 from proof write-term (previous step)

of[fd] = mkfile(m, mode, m0), buf-opt = none, dirs0 = dirs, err = ESUCCESS, err0 = ESUCCESS, ino = m, ino0 = 0, ino1 = m0 + n, ino2 = m0, inode = getinode(ino, dirs, files), pageno = 0, afs-cons(dirs, files), of-cons(of, dirs, files), fd ∈ of, n ≤ # buf ⊦ ⟪if err = ESUCCESS then afs_truncate#(inode.size, inode.size / VFS_PAGE_SIZE; buf-opt, inode, isdir, err, dirs, files, asynced); if err = ESUCCESS then vfs_write_loop#(ino2, inode, ino1, buf, dirs; ino0, err, files, asynced); if ino0 ≠ 0 then err := ESUCCESS; if err = ESUCCESS then let ino = inode.size in {n := ino0, ino1 := ino2 + ino0; if ino0 ≠ 0 ∧ ino < ino1 then {inode.size := ino1; afs_check_commit#(dirs, files; err; asynced); if err = ESUCCESS then afs_write_inode#(inode; err, dirs, files; asynced)}; if err ≠ ESUCCESS then n := (ino2 ≤ ino ⊃ ino - ino2;0), err := ESUCCESS; of[fd].pos := ino2 + n}⟫ (dirs0 = dirs), VFS_PAGE_SIZE = 0, n = 0, mode ≠ MODE_W ∧ mode ≠ MODE_RW

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

pos: right 1

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