Radioss环境下进行隐式准静态线性求解计算，得到如下的输出文件，请问是哪处出现问题又该如何解决？

Question

         **************************
           ** IMPLICIT OPTION USED **
           **************************

NC= 0 T= 0.0000E+00 DT= 7.5000E+01 ERR= 0.0% DM/M= 0.0000E+00
ANIMATION FILE: FINAL222A001 WRITTEN

   *--------- STIFFNESS MATRIX SETUP ---------*
SYMBOLIC DIM : ND = 160416 NZ =   4598910 NB_MAX =      36
FINAL    DIM : ND = 156236 NZ =   4442728 NB_MAX =      36

--STIFFNESS MATRIX WILL BE REFORMED AFTER EACH 3 ITERATIONS--

   **TIMESTEP WILL BE REDUCED DUE TO DIM.(ND) CHANGE W/AUTOSPC::**       0      22
     RESTART FILES: FINAL222_0001_[0001-0001].rst WRITTEN
NC=       0 T= 0.0000E+00 DT= 6.0000E+01 ERR= 0.0% DM/M= 0.0000E+00
     --STIFFNESS MATRIX WILL BE REFORMED AFTER EACH    3 ITERATIONS--

   **TIMESTEP WILL BE REDUCED DUE TO DIM.(ND) CHANGE W/AUTOSPC::**       0      19
     RESTART FILES: FINAL222_0001_[0001-0001].rst WRITTEN
NC=       0 T= 0.0000E+00 DT= 4.8000E+01 ERR= 0.0% DM/M= 0.0000E+00
   *--------- RIGID WALL IMPACT---------*
     --STIFFNESS MATRIX WILL BE REFORMED AFTER EACH    3 ITERATIONS--

模型的engine file如下：

/ANIM/DT
#   TSTART     TFREQ
0.000000 2.500000
/RUN/FINAL222/1
                  75
/TFILE/0
#            dT_HIS
0.100000
/VERS/130
/ANIM/VECT/PCONT
/ANIM/VECT/VEL
/ANIM/ELEM/ENER
/IMPL/QSTAT/
/IMPL/SOLVER/1
5 0 3 0.0
/IMPL/DT/STOP
1E-5 0.01
/IMPL/DT/2
6 0 20 0.8 1.02