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

# lpt = # avol, # lpt0 = # avol, awbuf-inv(avol, bleb), synced(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then {adr := adr0; m := m0; nx := []; lpt := lpt0; ns := ns0} else isbuf := true; ns0 := ?⟫ (# lpt = # avol)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 8:
# lpt0 = # avol, # lpt = # avol, awbuf-inv(avol, bleb), synced(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err0 = ESUCCESS then {adr := adr0; m := m0; nx := []; lpt := lpt0; ns := ns0} else isbuf := true; ns0 := ?⟫ (# lpt = # avol)

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

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information