message: Commented out the approximate Jac-vec-product.
diff: @@ -868,7 +868,7 @@ int main (int argc, char *argv[])
  {
  // Specify linear solver when we use a Newton-based solver.
  solver.SetPreconditioner(*S);
  - static_cast<IterativeSolver *>(S)->SetOpTimes(&solver, NewtonSolver::DQOpTimes);
  + //static_cast<IterativeSolver *>(S)->SetOpTimes(&solver, NewtonSolver::DQOpTimes);
  }
  solver.SetMaxIter(solver_iter);
  solver.SetRelTol(solver_rtol);
  