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Proof step 56 from proof validrefs-put-notin (previous step)

r0 ≠ jvmref ∧ (¬ is_valid_ref(str, r0, st) ∨ ¬ st[r0 -- _type] .type ≤ ty), ∀ str, ty, st, r, sk, val. (validrefs(str, acc, ty, st[r -- sk, val]) ↔ validrefs(str, acc, ty, st)) ∨ r ∈ acc ⊦ r0 = jvmref, r = r0, validrefs(str, r0 ' + acc, ty, st[r -- sk, val]) ↔ false, r ∈ acc

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 55:
validrefs(str, r0 ' + acc, ty, st[r -- sk, val]), ¬ is_valid_ref(str, r0, st) ∨ ¬ st[r0 -- _type] .type ≤ ty, ∀ str, ty, st, r, sk, val. (validrefs(str, acc, ty, st[r -- sk, val]) ↔ validrefs(str, acc, ty, st)) ∨ r ∈ acc ⊦ r0 = jvmref, r = r0, r ∈ acc

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]