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Proof step 6 from proof inv-format (previous step)

⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then avols := ∅ else avols := ?; if err = ESUCCESS then {v := default-volid; ebm_create_volume#(v, m; avols; err)}⟫ (err = ESUCCESS → default-volid ∈ avols ∧ v = default-volid ∧ ebm-cons(avols))

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 7:
err = err0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err = ESUCCESS then avols := ∅ else avols := ?; if err = ESUCCESS then {v := default-volid; ebm_create_volume#(v, m; avols; err)}⟫ (err = ESUCCESS → default-volid ∈ avols ∧ v = default-volid ∧ ebm-cons(avols))

Proof step 6 from proof inv-format (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information