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Proof step 28 from proof inv-open (previous step)

getinode(ino, dirs, files).directory ↔ isdir, isdir ↔ false, err = ESUCCESS, err0 = ESUCCESS, ino = ino0, dom of < ino1, afs-cons(dirs, files), ispath(p, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, p, ROOT_INO, dirs, files), (mode = MODE_R ∨ mode = MODE_RW) ∧ ¬ pr(user, getinode(ino, dirs, files).meta) ∨ (mode = MODE_W ∨ mode = MODE_RW) ∧ ¬ pw(user, getinode(ino, dirs, files).meta) ⊦ ⟪if EACCESS = ESUCCESS then {of[ino1] := mkfile(ino0, mode, 0); fd := ino1; ino1 := ino1 + 1}⟫ (of-cons(of, dirs, files) ∧ dom of < ino1)

Heuristic symbolic execution applied rule if negative right

And obtained the following new goals

Proof step 29:
isdir ↔ false, getinode(ino, dirs, files).directory ↔ isdir, err = ESUCCESS, err0 = ESUCCESS, ino = ino0, dom of < ino1, afs-cons(dirs, files), ispath(p, ROOT_INO, ino0, dirs, files), of-cons(of, dirs, files), pre-iget(ino, dirs, files), px-parent(user, p, ROOT_INO, dirs, files), (mode = MODE_R ∨ mode = MODE_RW) ∧ ¬ pr(user, getinode(ino, dirs, files).meta) ∨ (mode = MODE_W ∨ mode = MODE_RW) ∧ ¬ pw(user, getinode(ino, dirs, files).meta) ⊦ ⟪skip⟫ (of-cons(of, dirs, files) ∧ dom of < ino1)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ ESUCCESS ≠ EACCESS; (s)