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Proof step 27 from proof refine-isbad (previous step)

pebs[m] = mkpeb(buf, m0, boolvar), err = ESUCCESS, m < # pebs, m < # apebs, abs(pebs, apebs), abs-peb(mkpeb(buf, m0, boolvar), apebs[m]), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ ⟨isbad := apebs[m].bad⟩ ((boolvar ↔ isbad) ∧ ESUCCESS = err)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 28:
pebs[m] = mkpeb(buf, m0, boolvar), err = ESUCCESS, m < # apebs, m < # pebs, abs(pebs, apebs), abs-peb(mkpeb(buf, m0, boolvar), apebs[m]), mtd-cons(pebs), ubi-io-inv(apebs) ⊦ (boolvar ↔ apebs[m].bad) ∧ ESUCCESS = err

Proof step 27 from proof refine-isbad (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information