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Proof step 37 from proof validrefs-not-contains (previous step)

st[r -- i '] = refval(r0), is_array(str, r, st), st[r -- _type] .type ≤ ty, i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval, is_valid_ref(str, r0, st), st[r0 -- _type] .type ≤ st[r -- _type] .type .type ⊦ r0 = jvmref, r = r0, r = jvmref, contains(str, st[r -- _type] .type ' + [] + st[r0 -- _type] .type ')

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 36:
st[r -- i '] = refval(r0), is_array(str, r, st), st[r -- _type] .type ≤ ty, i < st[r -- _length] .intval, 0 ≤ i, 0 < st[r -- _length] .intval, is_valid_ref(str, r0, st), st[r0 -- _type] .type ≤ st[r -- _type] .type .type ⊦ r0 = jvmref, r = r0, r = jvmref, contains(str, st[r -- _type] .type ' + st[r0 -- _type] .type ')

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (tys + tys0) + tys1 = tys + tys0 + tys1], [CSIMPSEQ : ⊦ [] + tys = tys])]]