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Proof step 1 from proof initialization (conclusion)

⊦ ⟪ubi_io_format#(; m, pebs; err)⟫ ( (err = ESUCCESS → ⟨aubi_io_format#(; ; apebs0, err0)⟩ (abs(pebs, apebs0) ∧ err = err0)) ∧ (err ≠ ESUCCESS → (∀ apebs. ⟨aubi_io_format#(; ; apebs0, err0)⟩ (apebs = apebs0 ∧ err = err0))))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
⊦ ⟪ubi_io_format#(; m, pebs; err)⟫ ( (err = ESUCCESS → ⟨aubi_io_format#(; ; apebs0, err0)⟩ (abs(pebs, apebs0) ∧ ESUCCESS = err0)) ∧ (err ≠ ESUCCESS → (∀ apebs. ⟨aubi_io_format#(; ; apebs0, err0)⟩ (apebs = apebs0 ∧ err = err0))))

Proof step 1 from proof initialization (conclusion)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information