| ⊦ ( (# gs.ar ≠ 0 ∧ htok(gs.ar)) ∧ ls.n < # gs.ar ∧ ls.e ≠ ⊥ ∧ ls.sz = # gs.ar ∧ (ls.n0 < # gs.ar ∧ ls.n0 = get_hash(ls.e, ls.sz)) ∧ ls.n = ls.n0 ∧ allslotsfull(gs.ar, ls.n0, ls.n, ls.e, false)) ∧ pre(gs, ls, M4, a) ∧ pcstepf(gs, ls, M4, a) = M5 → (# gstepf(gs, ls, M4, a).ar ≠ 0 ∧ htok(gstepf(gs, ls, M4, a).ar)) ∧ lstepf(gs, ls, M4, a).n < # gstepf(gs, ls, M4, a).ar ∧ lstepf(gs, ls, M4, a).e ≠ ⊥ ∧ lstepf(gs, ls, M4, a).sz = # gstepf(gs, ls, M4, a).ar ∧ ( lstepf(gs, ls, M4, a).n0 < # gstepf(gs, ls, M4, a).ar ∧ lstepf(gs, ls, M4, a).n0 = get_hash(lstepf(gs, ls, M4, a).e, lstepf(gs, ls, M4, a).sz)) ∧ ¬ lstepf(gs, ls, M4, a).b ∧ allslotsfull(gstepf(gs, ls, M4, a).ar, lstepf(gs, ls, M4, a).n0, lstepf(gs, ls, M4, a).n, lstepf(gs, ls, M4, a).e, false) |