( Solid & groundflow.
  Distributed force 0.01 due to groundflow pressure.
  Velocity 0 at left node.
  Young 1..
  In equilibrium, the bar should be elongated 0.01.
  A matrix solver is used.)

echo -no
number_of_space_dimensions 1
materi_velocity
materi_strain_total
materi_stress
groundflow_pressure
end_initia

node 1  0
node 2  1
element 1  -bar2 1 2

group_type 0  -materi -groundflow
group_materi_elasti_young   0  1.0
group_materi_memory 0  -updated_without_rotation
group_groundflow_permeability 0  1.0

bounda_unknown 1  1 -velx
bounda_time    1  0. 0. 1000. 0.
bounda_unknown 2  1 -pres
bounda_time    2  0. 2.e-2 1000. 2.e-2
bounda_unknown 3  2 -pres
bounda_time    3  0. 0. 1000. 0.

print_filter 0  -node_dof -all -eptxx

control_timestep 0  1. 1.
(control_print    0  -time_current -node_dof)

target_item 0 -node_dof 2 -eptxx
target_value 0  -0.01 1.e-4
end_data
