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Proof step 16 from proof junkrefs-union-disjoint (previous step)

st1 .refs ∩ st .refs = ∅, r ∈ st1, r ≠ jvmref ∧ (¬ is_valid_ref(str, r, st1 ∪ st) ∨ ¬ (st1 ∪ st)[r -- _type] .type ≤ ty) ⊦ r ≠ jvmref ∧ (¬ is_valid_ref(str, r, st1) ∨ ¬ st1[r -- _type] .type ≤ ty)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
st1 .refs ∩ st .refs = ∅, r ∈ st1, is_valid_ref(str, r, st1), st1[r -- _type] .type ≤ ty, ¬ is_valid_ref(str, r, st1 ∪ st) ∨ ¬ (st1 ∪ st)[r -- _type] .type ≤ ty ⊦ r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]