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Proof step 13 from proof recovery (previous step)

avol = avol1, ebm-cons(avols1), ebm-cons(avols0), ebm-vol-inv(abs(avols1[default-volid])), default-volid ∈ avols1, avols1 ⊆ avols0, ⌊err0⌋ ⊦ ⟨fail_or_success#(; ; err); if err ≠ ESUCCESS then avol := ?⟩ (avol0 = avol ∧ err0 = err)

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 14:
avol = avol1, ebm-cons(avols0), ebm-cons(avols1), ebm-vol-inv(abs(avols1[default-volid])), default-volid ∈ avols1, avols1 ⊆ avols0, ⌊err0⌋ ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err ≠ ESUCCESS then avol := ?⟩ (avol0 = avol ∧ err0 = err)

Rule argument

pos: right 1

Additional information

Used simplifier rules: fail_or_success#(; ; ERR) {choose ERR0 with ⌊ERR0⌋ ∨ ERR0 = ESUCCESS in ERR := ERR0};