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Proof step 5 from proof inv-format (previous step)

⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in 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 choose right

And obtained the following new goals

Proof step 6:
⌊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))
Proof step 37:
⊦ ∃ err0. ⌊err0⌋ ∨ err0 = ESUCCESS

Proof step 5 from proof inv-format (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information