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Proof step 22 from proof refine-isbad (previous step)

pebs[m] = mkpeb(buf, m0, boolvar), m < # apebs, m < # pebs, abs(pebs, apebs), abs-peb(mkpeb(buf, m0, boolvar), apebs[m]), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then isbad := apebs[m].bad else isbad := ?⟩ ((boolvar ↔ isbad) ∧ ESUCCESS = err)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 23:
pebs[m] = mkpeb(buf, m0, boolvar), m < # pebs, m < # apebs, abs(pebs, apebs), abs-peb(mkpeb(buf, m0, boolvar), apebs[m]), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then isbad := apebs[m].bad else isbad := ?⟩ ((boolvar ↔ isbad) ∧ ESUCCESS = err)

Proof step 22 from proof refine-isbad (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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