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Proof step 27 from proof at-put-prim (previous step)

is_array(str, r0, st), st[r0 -- sk0] = refval(r1), fits(r1, sks0, st), is_referencevalue(st[r1 -- sks0]), junkref(str, r1, st), is_arraytype(st[r0 -- _type] .type) → is_indexkey(sk0) ∧ 0 ≤ sk0 .index ∧ sk0 .index < st[r0 -- _length] .intval, is_classtype(st[r0 -- _type] .type) → sk0 ∈ instfields(st[r0 -- _type] .type .class), r0 ≠ r ∨ sk0 ≠ sk ⊦ sks0 = [], r0 = jvmref, (st[r -- sk, val][r1 -- sks0]) = st[r1 -- sks0], junkref(str, r0, st), junkref(str, r, st), is_referencevalue(st[r -- sk])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
st[r0 -- sk0] = refval(r1), is_array(str, r0, st), fits(r1, sks0, st), is_referencevalue(st[r1 -- sks0]), junkref(str, r1, st), is_arraytype(st[r0 -- _type] .type), is_indexkey(sk0), sk0 .index < st[r0 -- _length] .intval, 0 ≤ sk0 .index, 0 < st[r0 -- _length] .intval, r0 ≠ r ∨ sk0 ≠ sk ⊦ sks0 = [], r0 = jvmref, (st[r -- sk, val][r1 -- sks0]) = st[r1 -- sks0], junkref(str, r0, st), junkref(str, r, st), is_referencevalue(st[r -- sk])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDFORWARD : int-abs, , forward-le-01, ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPNAMEDFORWARD : int-abs, , forward-le-05, ⊦ i < j ∧ 0 ≤ i → 0 < j], [CSIMPNAMEDSEQ : javatype, , diff-01, ⊦ is_arraytype(ty) → ¬ is_classtype(ty)], [CSIMPNAMEDSEQ : okfuns, , is_array-arraytype, ⊦ ¬ is_arraytype (st[r -- _type] .type) → ¬ is_array(str, r, st)])]]