Radioss環境下進行隱式準靜態線性求解計算，得到如下的輸出文件，請問是哪處出現問題又該如何解決？

         **************************
           ** 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