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Proof step 8 from proof inv-read-buf (previous step)

# lpt = # avol, avol[m3] = mapped(buf1), m3 < # avol, awbuf-inv(avol, bleb), m0 + n ≤ LEB_SIZE, n ≤ # buf, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪err := err0; if err = ESUCCESS then buf := copy(avol[m3].data + mkempbuf(LEB_SIZE - # avol[m3].data), m0, buf, 0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, n, buf, n, # buf - n) in buf := buf1⟫ true

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 9:
# lpt = # avol, avol[m3] = mapped(buf1), m3 < # avol, awbuf-inv(avol, bleb), n ≤ # buf, m0 + n ≤ LEB_SIZE, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪if err0 = ESUCCESS then buf := copy(avol[m3].data + mkempbuf(LEB_SIZE - # avol[m3].data), m0, buf, 0, n) else choose buf1 with # buf1 = # buf ∧ range=(buf1, n, buf, n, # buf - n) in buf := buf1⟫ true

Proof step 8 from proof inv-read-buf (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information