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Proof step 25 from proof cyclic-pseq (previous step)

¬ (st[r2 -- fs '] = refval(r2) ∧ is_obj(str, r2, st) ∧ fs ' ∈ instfields(st[r2 -- _type] .type .class) ∧ st[r2 -- _type] .type ≤ fs .type), st[r2 -- _type] = st1[r1 -- _type], st1[r1 -- _type] .type = mkclasstype(class), r2 = st[r2 -- fs '] .refval, ps=(r2, st, st1[r1 -- fs '] .refval, st1), is_referencevalue(st[r2 -- fs ']), fs ' ∈ instfields(class), is_obj(str, r1, st1), is_obj(str, r2, st), validrefs(str, r2 ', fs .type, st), ∀ fs. fs ' ∈ instfields(class) ∧ ¬ is_referencevalue(st[r2 -- fs ']) → st[r2 -- fs '] = st1[r1 -- fs '], ∀ st, r, st0, r0, str0. maxpath(str0, r0, st0) < maxpath(str, r1, st1) → (ps=(r, st, r0, st0) ∧ cyclic(str0, r, st) → junkref(str0, r, st) ∨ junkref(str0, r0, st0) ∨ cyclic(str0, r0, st0)) ⊦ r1 = jvmref, r2 = jvmref, junkref(str, r2, st), junkref(str, r1, st1), cyclic(str, r1, st1), cyclic(str, r2, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 24:
st[r2 -- _type] = st1[r1 -- _type], st1[r1 -- _type] .type = mkclasstype(class), r2 = st[r2 -- fs '] .refval, ps=(r2, st, st1[r1 -- fs '] .refval, st1), is_referencevalue(st[r2 -- fs ']), fs ' ∈ instfields(class), is_obj(str, r1, st1), is_obj(str, r2, st), validrefs(str, r2 ', fs .type, st), ∀ fs. fs ' ∈ instfields(class) ∧ ¬ is_referencevalue(st[r2 -- fs ']) → st[r2 -- fs '] = st1[r1 -- fs '], ∀ st, r, st0, r0, str0. maxpath(str0, r0, st0) < maxpath(str, r1, st1) → (ps=(r, st, r0, st0) ∧ cyclic(str0, r, st) → junkref(str0, r, st) ∨ junkref(str0, r0, st0) ∨ cyclic(str0, r0, st0)) ⊦ r1 = jvmref, r2 = jvmref, junkref(str, r2, st), junkref(str, r1, st1), cyclic(str, r1, st1), cyclic(str, r2, st), mkclasstype(class) ≤ fs .type

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ mkclasstype(class) .class = class], [CSIMPSEQ : ⊦ is_referencevalue(val) ∧ val .refval = r → (val ≠ refval(r) ↔ false)])]]