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Proof step 109 from proof copy-comp (previous step)

getarray(r1, i1, i3, st0) = getarray(r2, i2, i3, st0), r2 ∈ st0, 0 ≤ i2, 0 ≤ i3, okarray(r2, ty, st0), i2 + i3 ≤ st0[r2 -- _length] .intval ⊦ r2 = jvmref, (r2 -- i ' ∈ arraycopy(r1, i1, r2, i2, i3, st0) ↔ r2 -- i ' ∈ st0) ∧ (arraycopy(r1, i1, r2, i2, i3, st0)[r2 -- i ']) = st0[r2 -- i ']

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ getarray(r, i, j, st) = getarray(r0, i0, j, st0) ↔ (∀ j0. 0 ≤ j0 ∧ j0 < j → st[r -- (i + j0) '] = st0[r0 -- (i0 + j0) '])
Proof step 108:
∀ j0. 0 ≤ j0 ∧ j0 < i3 → st0[r1 -- (i1 + j0) '] = st0[r2 -- (i2 + j0) '], r2 ∈ st0, 0 ≤ i2, 0 ≤ i3, okarray(r2, ty, st0), i2 + i3 ≤ st0[r2 -- _length] .intval ⊦ r2 = jvmref, (r2 -- i ' ∈ arraycopy(r1, i1, r2, i2, i3, st0) ↔ r2 -- i ' ∈ st0) ∧ (arraycopy(r1, i1, r2, i2, i3, st0)[r2 -- i ']) = st0[r2 -- i ']

Rule argument

[speclemmaarg: , getarray(r, i, j, st) = getarray(r0, i0, j, st0) ↔ (∀ j0. 0 ≤ j0 ∧ j0 < j → st[r -- (i + j0) '] = st0[r0 -- (i0 + j0) ']) ,[st0, i0, r0, st, j, i, r] → [st0, i2, r2, st0, i3, i1, r1] ,F ,storearrays , ,get-alleq ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st0, i2, r2, st0, i3, i1, r1)]]