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@ -156,7 +156,7 @@ end
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(** Theory Solver *)
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(* orient equations s.t. Var < Memory < Extract < Concat < others, then
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(** orient equations s.t. Var < Memory < Extract < Concat < others, then
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using height of aggregate nesting, and then using Term.compare *)
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let orient e f =
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let compare e f =
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@ -681,9 +681,10 @@ let subst_invariant us s0 s =
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type 'a zom = Zero | One of 'a | Many
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(* try to solve [p = q] such that [fv (p - q) ⊆ us ∪ xs] and [p - q] has at
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most one maximal solvable subterm, [kill], where [fv kill ⊈ us]; solve [p
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= q] for [kill]; extend subst mapping [kill] to the solution *)
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(** try to solve [p = q] such that [fv (p - q) ⊆ us ∪ xs] and [p - q]
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has at most one maximal solvable subterm, [kill], where
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[fv kill ⊈ us]; solve [p = q] for [kill]; extend subst mapping [kill]
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to the solution *)
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let solve_poly_eq us p' q' subst =
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let diff = Term.sub p' q' in
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let max_solvables_not_ito_us =
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