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Proof step 18 from proof prepost-create-freelist (previous step)

lpt[n0] = mklp(m, m0, LP_FREE, m1), n0 < # lpt, freelist-cons(subarray(lpt, 0, n0), freelist) ⊦ ¬ dups(freelist + n0 ') ∧ (¬ n0 < n ∧ subarray(lpt, 0, n0 + 1)[n].flags = LP_FREE ↔ n ∈ freelist ∨ n = n0)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 19:
lpt[n0] = mklp(m, m0, LP_FREE, m1), subarray(lpt, 0, n0 + 1)[n] = mklp(m2, m3, lpf, m4), n0 < # lpt, freelist-cons(subarray(lpt, 0, n0), freelist) ⊦ ¬ dups(freelist + n0 ') ∧ (¬ n0 < n ∧ lpf = LP_FREE ↔ n ∈ freelist ∨ n = n0)

Rule argument

spec: lprops name: elim seq: ⊦ ((m = lp.ref-size ∧ m0 = lp.size) ∧ lpf = lp.flags) ∧ m1 = lp.gcheapidx ↔ lp = mklp(m, m0, lpf, m1) subst: [lp, m, m0, lpf, m1] → [subarray(lpt, 0, n0 + 1)[n], m2, m3, lpf, m4]

Additional information

Used simplifier rules: ⊦ ((m = lp.ref-size ∧ m0 = lp.size) ∧ lpf = lp.flags) ∧ m1 = lp.gcheapidx ↔ lp = mklp(m, m0, lpf, m1); (elim) Used terms: subarray(lpt, 0, n0 + 1)[n], m2, m3, lpf, m4