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Proof step 12 from proof maxpath-object (previous step)

st[r -- _type] .type = mkclasstype(class0), st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), maxpath(str, r, st) = 1, st[r -- _type] = typeval(mkclasstype(class0)), r -- _type ∈ st, is_typevalue(st[r -- _type]), is_classtype(st[r -- _type] .type), is_obj(r, class0, st), 1 ≤ maxpath(str, r0, st), validrefs(str, r ', st[r -- _type] .type, st), mkfs(class, ty, fieldvar) ' ∈ instfields(class0), is_obj(str, r, st), r ∈ st ⊦ validrefset(str, r, st) = ∅, # validrefset(str, r, st) = 0, maxpath(str, r0, st) = 0, r = jvmref, junkref(str, r, st), cyclic(str, r, st), is_reftype(ty)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
st[r -- _type] = typeval(mkclasstype(class0)), maxpath(str, r, st) = 1, st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), r ∈ st, is_obj(str, r, st), mkfs(class, ty, fieldvar) ' ∈ instfields(class0), validrefs(str, r ', mkclasstype(class0), st), 1 ≤ maxpath(str, r0, st), is_obj(r, class0, st), r -- _type ∈ st ⊦ r = jvmref, maxpath(str, r0, st) = 0, # validrefset(str, r, st) = 0, validrefset(str, r, st) = ∅, is_reftype(ty), cyclic(str, r, st), junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_typevalue(typeval(ty))], [CSIMPSEQ : ⊦ is_classtype(mkclasstype(class))], [CSIMPSEQ : ⊦ mkclasstype(class) = mkclasstype(class0) ↔ class = class0], [CSIMPSEQ : ⊦ typeval(ty) .type = ty])]]