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Proof step 6 from proof crash-neutral-remap (previous step)

# lpt = # avol, adr = adr0, m = m1, m0 = m2, ns = ns0, nx = nx0, m2 < # avol, awbuf-inv(avol, bleb), synced(avol), synced(avol0), avol0 ↓ avol ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}⟩ (avol0 ↓ avol), buffered(m2) = bleb

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 7:
# lpt = # avol, adr = adr0, m = m1, m0 = m2, ns = ns0, nx = nx0, m2 < # avol, awbuf-inv(avol, bleb), synced(avol0), synced(avol), avol0 ↓ avol ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}⟩ (avol0 ↓ avol), buffered(m2) = bleb

Proof step 6 from proof crash-neutral-remap (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information