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Proof step 43 from proof validrefs-del-junkrefs (previous step)

¬ (r0 ≠ jvmref ∧ ¬ is_valid_ref(str, r0, st)), junkrefs(str, r0 ' + r ', ty, st -- r), st[r0 -- _type] .type ≤ ty ⊦ r0 = jvmref, r = r0, validrefs(str, r0 ' + r ', ty, st), junkref(str, r0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 42:
junkrefs(str, r0 ' + r ', ty, st -- r), st[r0 -- _type] .type ≤ ty, is_valid_ref(str, r0, st) ⊦ r0 = jvmref, r = r0, validrefs(str, r0 ' + r ', ty, st), junkref(str, r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]