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

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

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

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]