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Proof step 6 from proof unmodified-reload (previous step)

iast[adr] = indexnode(brar, boolvar, nused), indexnode(brar, boolvar, nused) = save(mkznode(rp0, zbrar, boolvar, false, nused)), adr ∈ iast, nused ≤ BRANCH_SIZE ⊦ indexnode(brar, boolvar, nused) = indexnode(save(load(brar, 0, nused), 0, nused), boolvar, nused)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ save(znd) = indexnode(save(znd.zbranches, 0, znd.usedsize), znd.leaf, znd.usedsize)
Proof step 8:
iast[adr] = indexnode(brar, boolvar, nused), indexnode(brar, boolvar, nused) = indexnode (save(mkznode(rp0, zbrar, boolvar, false, nused).zbranches, 0, mkznode(rp0, zbrar, boolvar, false, nused).usedsize), mkznode(rp0, zbrar, boolvar, false, nused).leaf, mkznode(rp0, zbrar, boolvar, false, nused).usedsize), adr ∈ iast, nused ≤ BRANCH_SIZE ⊦ indexnode(brar, boolvar, nused) = indexnode(save(load(brar, 0, nused), 0, nused), boolvar, nused)

Rule argument

spec: znode-ops name: save-node seq: ⊦ save(znd) = indexnode (save(znd.zbranches, 0, znd.usedsize), znd.leaf, znd.usedsize) subst: [znd] → [mkznode(rp0, zbrar, boolvar, false, nused)] flags: <all paths>

Additional information

Used terms: mkznode(rp0, zbrar, boolvar, false, nused)