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Proof step 4 from proof crash-neutral-remap (previous step)

# lpt = # avol, adr = adr0, m = m1, m0 = m2, ns = ns0, plog = plog0, m2 < # avol, ebm-vol-inv(avol), avol ⊆ avol0 ⊦ ⟨if m0 < # avol then {fail_or_success#(; ; err); if err = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}} else abort⟩ (avol ⊆ avol0)

Heuristic symbolic execution applied rule if positive right

And obtained the following new goals

Proof step 5:
# lpt = # avol, adr = adr0, m = m1, m0 = m2, ns = ns0, plog = plog0, m2 < # avol, ebm-vol-inv(avol), avol ⊆ avol0 ⊦ ⟨fail_or_success#(; ; err); if err = ESUCCESS then avol[m0] := mapped(mkbuf(0)) else {skip or avol[m0] := unmapped}⟩ (avol ⊆ avol0)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ⊦ m < n ↔ ¬ n ≤ m; (ss)% ⊦ m < n → (n ≤ m ↔ false); (s)