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Proof step 8 from proof inv-commit (previous step)

# 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)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 9:
# lpt = # avol, # lpt0 = # avol, ebm-vol-inv(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err0 = ESUCCESS then {adr := adr0; m := m0; plog := []; lpt := lpt0; ns := ns0}; ns0 := ?⟫ (# lpt = # avol)

Proof step 8 from proof inv-commit (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information