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Proof step 57 from proof validrefs-put-badclassfield (previous step)

st[r -- _type] .type = mkarraytype(ty0) ∧ is_arraytype(st[r -- _type] .type), st[r0 -- _type] .type = mkclasstype(class), 0 < st[r -- _length] .intval, is_array(str, r, st), i < st[r -- _length] .intval, is_referencevalue(st[r -- i ']), validrefs(str, st[r -- i '] .refval ' + refs, ty0, st[r0 -- fs ', val]), 0 ≤ i, st[r -- _type] .type ≤ ty, junkref(str, st[r -- i '] .refval, st) ⊦ r = r0, r = jvmref, fs ' = _type, validrefs(str, st[r -- i '] .refval ' + refs, ty0, st), junkref(str, r, st), fs ' ∈ instfields(class), r ∈ (st[r -- i '] .refval ' + refs) .butlast, dups((st[r -- i '] .refval ' + refs) .butlast)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 56:
st[r0 -- _type] .type = mkclasstype(class), st[r -- _type] .type = mkarraytype(ty0), junkref(str, st[r -- i '] .refval, st), mkarraytype(ty0) ≤ ty, 0 ≤ i, validrefs(str, st[r -- i '] .refval ' + refs, ty0, st[r0 -- fs ', val]), is_referencevalue(st[r -- i ']), i < st[r -- _length] .intval, is_array(str, r, st), 0 < st[r -- _length] .intval ⊦ fs ' = _type, r = jvmref, r = r0, dups((st[r -- i '] .refval ' + refs) .butlast), r ∈ (st[r -- i '] .refval ' + refs) .butlast, fs ' ∈ instfields(class), junkref(str, r, st), validrefs(str, st[r -- i '] .refval ' + refs, ty0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_arraytype(mkarraytype(ty))], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])]]