| ¬ (r ≠ jvmref ∧ ¬ is_valid_ref(str, r, st)), st2[r -- _type] = st1[r1 -- _type], st[r -- _type] = st1[r1 -- _type], st1[r1 -- _type] .type = mkclasstype(class), st2[r -- fs '] = refval(r2), fs ' ∈ instfields(class), r -- _type ∈ st, r -- _type ∈ st2, r ∈ st, r ∈ st2, is_valid_ref(str, r1, st1), ∀ fs. fs ' ∈ instfields(class) ∧ ¬ is_referencevalue(st[r -- fs ']) → st[r -- fs '] = st1[r1 -- fs '], ∀ fs. fs ' ∈ instfields(class) ∧ is_referencevalue(st[r -- fs ']) → ps=(st[r -- fs '] .refval, st, st1[r1 -- fs '] .refval, st1), ∀ rk. rk ∈ st → rk ∈ st2 ∧ st[rk] = st2[rk], is_referencevalue(st[r -- fs ']) → ps=(st[r -- fs '] .refval, st, st1[r1 -- fs '] .refval, st1), ∀ st1, r1, st2, st0, r0, str0. maxpath(str0, r0, st0) < maxpath(str, r, st) → ( st0 ⊆ st2 ∧ ps=(r0, st0, r1, st1) → junkref(str0, r0, st0) ∨ cyclic(str0, r0, st0) ∨ junkref(str0, r1, st1) ∨ cyclic(str0, r1, st1) ∨ ps=(r0, st2, r1, st1)) ⊦ r1 = jvmref, r = jvmref, ps=(r2, st2, st1[r1 -- fs '] .refval, st1), cyclic(str, r1, st1), junkref(str, r1, st1), cyclic(str, r, st), junkref(str, r, st) |
st2[r -- _type] = st1[r1 -- _type], st[r -- _type] = st1[r1 -- _type], st1[r1 -- _type] .type = mkclasstype(class), st2[r -- fs '] = refval(r2), fs ' ∈ instfields(class), r -- _type ∈ st, r -- _type ∈ st2, r ∈ st, r ∈ st2, is_valid_ref(str, r1, st1), is_valid_ref(str, r, st), ∀ fs. fs ' ∈ instfields(class) ∧ ¬ is_referencevalue(st[r -- fs ']) → st[r -- fs '] = st1[r1 -- fs '], ∀ fs. fs ' ∈ instfields(class) ∧ is_referencevalue(st[r -- fs ']) → ps=(st[r -- fs '] .refval, st, st1[r1 -- fs '] .refval, st1), ∀ rk. rk ∈ st → rk ∈ st2 ∧ st[rk] = st2[rk], is_referencevalue(st[r -- fs ']) → ps=(st[r -- fs '] .refval, st, st1[r1 -- fs '] .refval, st1), ∀ st1, r1, st2, st0, r0, str0. maxpath(str0, r0, st0) < maxpath(str, r, st) → ( st0 ⊆ st2 ∧ ps=(r0, st0, r1, st1) → junkref(str0, r0, st0) ∨ cyclic(str0, r0, st0) ∨ junkref(str0, r1, st1) ∨ cyclic(str0, r1, st1) ∨ ps=(r0, st2, r1, st1)) ⊦ r1 = jvmref, r = jvmref, ps=(r2, st2, st1[r1 -- fs '] .refval, st1), cyclic(str, r1, st1), junkref(str, r1, st1), cyclic(str, r, st), junkref(str, r, st)
[[CONCRETESIMPRULES : ()]]