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Proof step 60 from proof validrefs-lastelem (previous step)

st[r0 -- mkfs(class, ty0, fieldvar) '] = refval(r1), st[r0 -- mkfs(class0, ty1, fieldvar0) '] = refval(r1), is_obj(str, r0, st), st[r0 -- _type] .type ≤ ty, mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r0 -- _type] .type .class), validrefs(str, r1 ' + refs0 + r ', ty0, st), mkfs(class0, ty1, fieldvar0) ' ∈ instfields(st[r0 -- _type] .type .class), validrefs(str, r1 ' + refs0, ty1, st), ∀ str0, ty2, st0, r2. validrefs(str0, r1 ' + refs0, ty2, st0) ∧ validrefs(str0, (r1 ' + refs0) + r2 ', ty2, st0) → has_reffield((r1 ' + refs0) .last, st0) ⊦ r0 = jvmref, has_reffield((r1 ' + refs0) .last, st)

User applied rule all left

And obtained the following new goals

Proof step 59:
st[r0 -- mkfs(class, ty0, fieldvar) '] = refval(r1), st[r0 -- mkfs(class0, ty1, fieldvar0) '] = refval(r1), is_obj(str, r0, st), st[r0 -- _type] .type ≤ ty, mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r0 -- _type] .type .class), validrefs(str, r1 ' + refs0 + r ', ty0, st), mkfs(class0, ty1, fieldvar0) ' ∈ instfields(st[r0 -- _type] .type .class), validrefs(str, r1 ' + refs0, ty1, st), validrefs(str, r1 ' + refs0, ty0, st) ∧ validrefs(str, (r1 ' + refs0) + r ', ty0, st) → has_reffield((r1 ' + refs0) .last, st) ⊦ r0 = jvmref, has_reffield((r1 ' + refs0) .last, st)

Rule argument

[EXRARG : pos: left 9, [extquanttermlist: (str, ty0, st, r) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, ty0, st, r)]]