Log continually print 'Processing user MIP start: 0 nodes explored in subMIP, total elapsed time xxxs' when I set an initial value for all variables of MIP model

Dear,

I set a feasible solution as the initial value for all variables of the MIP model, but I get the following log information. I do not know what is meaning of log is.

Set parameter LogFile to value "./log/gurobi_2022-06-30-21-35-44.log"
Set parameter MIPGap to value 0.03
Set parameter TimeLimit to value 17200000
Gurobi Optimizer version 9.5.1 build v9.5.1rc2 (win64)
Thread count: 8 physical cores, 16 logical processors, using up to 16 threads
Optimize a model with 1524608 rows, 1112520 columns and 3617624 nonzeros
Model fingerprint: 0xbee9fe71
Variable types: 1112467 continuous, 53 integer (53 binary)
Coefficient statistics:
  Matrix range     [9e-04, 2e+06]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [4e-09, 1e+08]

Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 5s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 11s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 15s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 20s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 25s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 30s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 35s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 40s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 45s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 51s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 69s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 84s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 105s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 120s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 139s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 154s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 163s
Processing user MIP start: 0 nodes explored in subMIP, total elapsed time 165s
Proc

Thanks a lot

Best Regards