message: the executer goes to the end
diff: @@ -79,9 +79,9 @@ protected:
  std::unique_ptr<Mtx> gen_mtx(int num_rows, int num_cols)
  {
  return gko::test::generate_random_matrix<Mtx>(
  - ref, num_rows, num_cols,
  + num_rows, num_cols,
  std::uniform_int_distribution<>(num_cols, num_cols),
  - std::normal_distribution<>(-1.0, 1.0), rand_engine);
  + std::normal_distribution<>(0.0, 1.0), rand_engine, ref);
  }
  void initialize_data()
  