solve
solving 11 dof system to machine precision using arnoldi solver
residual decreased by 15.7 orders using 0 krylov vectors
residual decreased by 0.0 orders using 1 krylov vectors
residual decreased by 0.0 orders using 2 krylov vectors
residual decreased by 0.0 orders using 3 krylov vectors
residual decreased by 0.0 orders using 4 krylov vectors
solver returned with residual 1e-16