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Proof step 18 from proof copy-same-01-01 (previous step)

i2 + i3 ≤ st0[r2 -- _length] .intval, i < i3, exactarray(r2, int_type, st0), 0 ≤ i2, 0 ≤ i, 0 < i3, r2 ∈ st0 ⊦ arraycopy(r1, i1, r2, i2, i3, st0[r2 -- (i2 + i) ', val]) = arraycopy(r1, i1, r2, i2, i3, st0), r1 = r2, r2 = jvmref

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ st1 = st2 ↔ (∀ rk. (rk ∈ st1 ↔ rk ∈ st2) ∧ st1[rk] = st2[rk])
Proof step 17:
i2 + i3 ≤ st0[r2 -- _length] .intval, i < i3, exactarray(r2, int_type, st0), 0 ≤ i2, 0 ≤ i, 0 < i3, r2 ∈ st0 ⊦ ∀ rk. (rk ∈ arraycopy(r1, i1, r2, i2, i3, st0[r2 -- (i2 + i) ', val]) ↔ rk ∈ arraycopy(r1, i1, r2, i2, i3, st0)) ∧ (arraycopy(r1, i1, r2, i2, i3, st0[r2 -- (i2 + i) ', val])[rk]) = (arraycopy(r1, i1, r2, i2, i3, st0)[rk]), r1 = r2, r2 = jvmref

Rule argument

[speclemmaarg: ,st1 = st2 ↔ (∀ rk. (rk ∈ st1 ↔ rk ∈ st2) ∧ st1[rk] = st2[rk]) ,[st2, st1] → [arraycopy(r1, i1, r2, i2, i3, st0), arraycopy(r1, i1, r2, i2, i3, st0[r2 -- (i2 + i) ', val])] ,F ,store ,javastore ,Extension ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (arraycopy(r1, i1, r2, i2, i3, st0), arraycopy (r1, i1, r2, i2, i3, st0[r2 -- (i2 + i) ', val]))]]