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Proof step 15 from proof refine-sync (previous step)

remove-refsize0(gstore2) = gstore2, remove-refsize0(istore1) = istore1, elems nx0 ∩ ginval0 = ∅, dom gstore2 ∪ elems nx0 = dom gstore0 ∪ ginval0, btree-inv(rp, adr, istore2, istore1, zh, fi2, fi1), inv(gstore0 \ ginval0), inv(gstore2), inv(istore2), inv(istore1), ri-inj(fi2), ri-inj(fi1), istore1 ⊑ istore2, ¬ dups(nx0) ⊦ ⟨err := EROFS; if err = ESUCCESS then syn := true else syn := ?⟩ ((syn ↔ syn0) ∧ EROFS = err)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 16:
err = EROFS, remove-refsize0(istore1) = istore1, remove-refsize0(gstore2) = gstore2, elems nx0 ∩ ginval0 = ∅, dom gstore2 ∪ elems nx0 = dom gstore0 ∪ ginval0, btree-inv(rp, adr, istore2, istore1, zh, fi2, fi1), inv(istore1), inv(istore2), inv(gstore2), inv(gstore0 \ ginval0), ri-inj(fi1), ri-inj(fi2), istore1 ⊑ istore2 ⊦ ⟨if err = ESUCCESS then syn := true else syn := ?⟩ ((syn ↔ syn0) ∧ EROFS = err), dups(nx0)

Proof step 15 from proof refine-sync (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

Additional information