message: fix default ode opt
diff: @@ -91,7 +91,7 @@ int main(int argc, char *argv[])
  int ser_ref_levels = 2;
  int par_ref_levels = 0;
  int order = 3;
  - int ode_solver_type = 4;
  + int ode_solver_type = 1;
  double t_final = 10.0;
  double dt = 0.01;
  bool visualization = true;
  