Why does MIPGap not give me the actual optimality gap?

Hello, 

for my optimization problem I set the time limit as follows:

model.Params.timeLimit = 2 * 60

Afterwards, I want to retrieve the optimality gap. Therefore, I am using the parameter MIPGap.

But whenever I am running the code, the resulting MIP gap has the default value 0.0001 and not the actual optimality gap that is automatically displayed in the Gurobi output. 

Why are these values not the same? How can I retrieve the actual optimality gap? 

Set parameter TimeLimit to value 120
Gurobi Optimizer version 10.0.1 build v10.0.1rc0 (win64)

CPU model: Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz, instruction set [SSE2|AVX|AVX2]
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 1640 rows, 8400 columns and 41200 nonzeros
Model fingerprint: 0x9f986b80
Variable types: 0 continuous, 8400 integer (0 binary)
Coefficient statistics:
  Matrix range     [1e-04, 1e+00]
  Objective range  [1e-02, 2e+03]
  Bounds range     [0e+00, 0e+00]
  RHS range        [1e+00, 1e+09]
Found heuristic solution: objective 1971914.6060
Presolve removed 20 rows and 0 columns
Presolve time: 0.06s
Presolved: 1620 rows, 8400 columns, 33200 nonzeros
Variable types: 0 continuous, 8400 integer (0 binary)
Found heuristic solution: objective 1971893.7260

Root relaxation: objective 3.761114e+05, 2916 iterations, 0.05 seconds (0.02 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 376111.405    0   39 1971893.73 376111.405  80.9%     -    0s
H    0     0                    407944.12200 376111.405  7.80%     -    0s
H    0     0                    407928.97400 376111.405  7.80%     -    0s
H    0     0                    407925.63400 376111.405  7.80%     -    0s
H    0     0                    406496.55600 376111.405  7.47%     -    0s
     0     0 380188.927    0   82 406496.556 380188.927  6.47%     -    0s
H    0     0                    406493.24600 380188.927  6.47%     -    0s
H    0     0                    406332.58600 380188.927  6.43%     -    0s
H    0     0                    394717.19800 380188.927  3.68%     -    0s
H    0     0                    388537.16400 380188.927  2.15%     -    0s
H    0     0                    388008.46000 380188.927  2.02%     -    0s
     0     0 380463.725    0   83 388008.460 380463.725  1.94%     -    0s
     0     0 380483.299    0   86 388008.460 380483.299  1.94%     -    1s
     0     0 380483.442    0   89 388008.460 380483.442  1.94%     -    1s
     0     0 380483.442    0   89 388008.460 380483.442  1.94%     -    1s
     0     2 380483.442    0   89 388008.460 380483.442  1.94%     -    1s
H   31    37                    387972.16600 380536.860  1.92%   6.6    1s
H   32    37                    387588.82200 380536.860  1.82%   6.4    1s
H   33    37                    387570.91800 380536.860  1.81%   6.5    1s
H  156   161                    385955.26000 380536.860  1.40%   5.5    2s
H 1027   856                    385955.04000 380706.943  1.36%   3.8    4s
  1031   859 383881.443   28   81 385955.040 380706.943  1.36%   3.7    5s
H 1031   816                    385884.30200 380706.943  1.34%   3.7    5s
H 1031   775                    385405.95000 380706.943  1.22%   3.7    5s
H 1040   741                    385384.06200 380706.943  1.21%   3.7    6s
H 1260   857                    385366.35000 380706.943  1.21%   6.8    8s
H 1332   848                    384861.07600 380706.943  1.08%   6.7    8s
H 1333   811                    384840.12200 380706.943  1.07%   6.7    8s
  2278  1264 383438.715   44   84 384840.122 381258.696  0.93%   5.5   10s
H 3368  1740                    384671.03200 381494.239  0.83%   5.0   11s
H 3381  1545                    384391.37000 381494.239  0.75%   4.9   11s
H 3392  1492                    384303.79200 381494.239  0.73%   5.0   11s
H 4734  2317                    384237.96200 381619.375  0.68%   4.6   13s
H 5980  3214                    384237.95200 381738.415  0.65%   4.4   15s
H 6017  3213                    384237.63200 381740.733  0.65%   4.4   15s
 10058  5492 383058.047   33   93 384237.632 381991.880  0.58%   4.4   20s
H13061  6870                    384237.63085 382121.235  0.55%   4.5   23s
 14540  7777 383644.420   41   81 384237.631 382164.446  0.54%   4.5   25s
 18887  9674 384032.665   42   81 384237.631 382297.534  0.50%   4.6   30s
 21135 10343 383777.676   26   89 384237.631 382357.761  0.49%   4.6   40s
 21153 10355 384112.549   33  154 384237.631 382357.761  0.49%   4.6   45s
 22836 10670 383898.068   64   94 384237.631 382771.674  0.38%   4.7   50s
 26730 11398 384218.958   50  110 384237.631 383063.755  0.31%   4.6   55s
 31166 12005 383766.649   54  112 384237.631 383133.589  0.29%   4.4   60s
 35276 11988 383856.816   53  110 384237.631 383171.700  0.28%   4.4   65s
 40213 12200 383234.465   52  110 384237.631 383209.629  0.27%   4.3   70s
 43327 12297 383737.622   56  108 384237.631 383226.670  0.26%   4.2   76s
 46185 12390 383881.890   62  106 384237.631 383242.053  0.26%   4.2   80s
 48978 12365 384176.669   73   88 384237.631 383253.873  0.26%   4.1   85s
 51464 12520 383736.966   67  107 384237.631 383263.074  0.25%   4.1   90s
 53469 13062 384207.375   57  103 384237.631 383269.300  0.25%   4.1   95s
 56065 13797 383825.050   52  109 384237.631 383278.626  0.25%   4.0  100s
 58937 14664 383741.570   57  111 384237.631 383288.881  0.25%   4.0  105s
 61896 15571 383859.686   59  105 384237.631 383298.496  0.24%   4.0  111s
 63441 16081 383924.227   59  107 384237.631 383304.444  0.24%   4.0  115s
 66216 16873 383911.039   58  104 384237.631 383311.290  0.24%   4.0  120s

Cutting planes:
  Gomory: 108
  MIR: 15
  Inf proof: 6

Explored 66288 nodes (266033 simplex iterations) in 120.05 seconds (43.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 384238 384238 384238 ... 385366

Time limit reached
Best objective 3.842376320000e+05, best bound 3.833121038592e+05, gap 0.2409%
model.Params.MIPGap: 0.0001

 Thank you very much!