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Proof step 2 from proof prepost-create-freelist (previous step)

⊦ ⟪freelist := []; let n = 0 in while n < # lpt do {/* (prepost-create-freelist: invariant n ≤ # lpt ∧ freelist-cons(subarray(lpt, 0, n), freelist) wfbound # lpt - n) */; if lpt[n].flags = LP_FREE then freelist := freelist + n; n := n + 1}⟫ freelist-cons(lpt, freelist)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 3:
⊦ ⟪let n = 0 in {freelist := []; while n < # lpt do {/* (prepost-create-freelist: invariant n ≤ # lpt ∧ freelist-cons(subarray(lpt, 0, n), freelist) wfbound # lpt - n) */; if lpt[n].flags = LP_FREE then freelist := freelist + n; n := n + 1}}⟫ freelist-cons(lpt, freelist)

Proof step 2 from proof prepost-create-freelist (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information