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Proof step 6 from proof inv-map (previous step)

m < # avols[v], ebm-cons(avols), v ∈ avols ⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err = ESUCCESS then avols[v][m] := mapped(emptyleb, 0)⟫ ebm-cons(avols), avols[v][m].mapped?

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 7:
m < # avols[v], ebm-cons(avols), v ∈ avols, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then avols[v][m] := mapped(emptyleb, 0)⟫ ebm-cons(avols), avols[v][m].mapped?
Proof step 11:
m < # avols[v], ebm-cons(avols), v ∈ avols ⊦ avols[v][m].mapped?, ∃ err0. ⌊err0⌋ ∨ err0 = ESUCCESS

Proof step 6 from proof inv-map (previous step)

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

Additional information