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Proof step 21 from proof nonnullrefs-dups-key (previous step)

¬ dups(fis0 .keys), r1 ≠ jvmref ∧ (∃ sk. fis0[sk] = refval(r1) ∧ sk ∈ fis0) ⊦ r1 = jvmref, dups(fis0 .vals .nonnullrefs), dups(fis0 .keys), sk3 ∈ fis0 .keys, ∃ r0, sk1, sk2. sk1 ≠ sk2 ∧ r0 ≠ jvmref ∧ ((sk3 × refval(r1)) ' + fis0)[sk1] = refval(r0) ∧ ((sk3 × refval(r1)) ' + fis0)[sk2] = refval(r0) ∧ (sk1 = sk3 ∨ sk1 ∈ fis0) ∧ (sk2 = sk3 ∨ sk2 ∈ fis0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
fis0[sk] = refval(r1), sk ∈ fis0 ⊦ r1 = jvmref, dups(fis0 .keys), sk3 ∈ fis0 .keys, dups(fis0 .vals .nonnullrefs), ∃ r0, sk1, sk2. sk1 ≠ sk2 ∧ r0 ≠ jvmref ∧ ((sk3 × refval(r1)) ' + fis0)[sk1] = refval(r0) ∧ ((sk3 × refval(r1)) ' + fis0)[sk2] = refval(r0) ∧ (sk1 = sk3 ∨ sk1 ∈ fis0) ∧ (sk2 = sk3 ∨ sk2 ∈ fis0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]