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Proof step 18 from proof inv-format (previous step)

err = err0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪avols := ∅; if err = ESUCCESS then avols[default-volid] := fill(mkabstractvolume(n), erased)⟫ (err = ESUCCESS → default-volid ∈ avols ∧ ebm-cons(avols))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 19:
avols = ∅, err = err0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err = ESUCCESS then avols[default-volid] := fill(mkabstractvolume(n), erased)⟫ (err = ESUCCESS → default-volid ∈ avols ∧ ebm-cons(avols))

Proof step 18 from proof inv-format (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information