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Proof step 7 from proof inv-commit (previous step)

# lpt = # avol, # lpt0 = # avol, ebm-vol-inv(avol) ⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err = ESUCCESS then {adr := adr0; m := m0; plog := []; lpt := lpt0; ns := ns0}; ns0 := ?⟫ (# lpt = # avol)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 8:
# lpt0 = # avol, # lpt = # avol, ebm-vol-inv(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then {adr := adr0; m := m0; plog := []; lpt := lpt0; ns := ns0}; ns0 := ?⟫ (# lpt = # avol)
Proof step 18:
# lpt0 = # avol, # lpt = # avol, ebm-vol-inv(avol) ⊦ ∃ err0. ⌊err0⌋ ∨ err0 = ESUCCESS

Proof step 7 from proof inv-commit (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information