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

m2 < # avols[v], ebm-cons(avols), v ∈ avols, n0 + n ≤ # buf, m1 + n ≤ LEB_SIZE ⊦ ⟪choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; if err = ESUCCESS then if ¬ avols[v][m2].mapped? then buf := fill(buf, empty, n0, n) else buf := copy(avols[v][m2].data, m1, buf, n0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n) in buf := buf1⟫ true

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Proof step 8:
m2 < # avols[v], ebm-cons(avols), v ∈ avols, m1 + n ≤ LEB_SIZE, n0 + n ≤ # buf, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then if ¬ avols[v][m2].mapped? then buf := fill(buf, empty, n0, n) else buf := copy(avols[v][m2].data, m1, buf, n0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, 0, buf, 0, n0) ∧ range=(buf1, n0 + n, buf, n0 + n, # buf - n0 + n) in buf := buf1⟫ true
Proof step 22:
m2 < # avols[v], ebm-cons(avols), v ∈ avols, m1 + n ≤ LEB_SIZE, n0 + n ≤ # buf ⊦ ∃ err0. ⌊err0⌋ ∨ err0 = ESUCCESS

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

Heuristic symbolic execution applied rule choose right

And obtained the following new goals

Rule argument

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