{motive : Lean.Meta.Grind.Arith.CollectDecVars.State → Sort u} →
  (t : Lean.Meta.Grind.Arith.CollectDecVars.State) →
    ((visited : Std.HashSet UInt64) → (found : Lean.FVarIdSet) → motive { visited := visited, found := found }) →
      motive t