| unchanged(str, r, st, st0), fits(r, sks, st) ⊦ junkref(str, r, st), fits(r, sks, st0) |
⊦ fits(r, [], st)
∀ str, r, st, st0. unchanged(str, r, st, st0) ∧ fits(r, sks0, st) → junkref(str, r, st) ∨ fits(r, sks0, st0), unchanged(str, r, st, st0), fits(r, sk + sks0, st) ⊦ junkref(str, r, st), fits(r, sk + sks0, st0)
[[CONCRETESIMPRULES : ([CSIMPGEN : storekeys generated by [], +;])]]