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

# lpt = # avol, m = m1, m0 = m2, m2 < # avol, ebm-vol-inv(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}⟫ (ebm-vol-inv(avol) ∧ # lpt = # avol)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 8:
# lpt = # avol, m = m1, m0 = m2, m2 < # avol, ebm-vol-inv(avol), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err0 = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}⟫ (ebm-vol-inv(avol) ∧ # lpt = # avol)

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

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information