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Proof step 3 from proof crash-neutral-create-volume (previous step)

ebm-cons(avols), avols ⊆ avols0, ebm-cons(avols) → ebm-cons(avols0) ⊦ ⟨if ¬ v ∈ avols then {fail_or_success#(; ; err); if err = ESUCCESS then avols[v] := fill(mkabstractvolume(n), erased)} else abort⟩ (avols ⊆ avols0 ∧ (ebm-cons(avols) → ebm-cons(avols0))), v ∈ avols

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Rule argument

pos: right 1

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