Optimize a model with 100 rows, 4950 columns and 9900 nonzeros
Presolve time: 0.01s
Presolved: 100 rows, 4950 columns, 9900 nonzeros
Variable types: 0 continuous, 4950 integer (4950 binary)

Root relaxation: objective 1.995250e+04, 154 iterations, 0.00 seconds

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

     0     0 19952.5000    0   14          - 19952.5000     -      -    0s
     0     0 19968.0000    0   14          - 19968.0000     -      -    0s
     0     0 20086.5833    0   25          - 20086.5833     -      -    0s
     0     0 20109.7500    0   24          - 20109.7500     -      -    0s
     0     0 20143.0000    0    8          - 20143.0000     -      -    0s
     0     0 20148.6667    0   21          - 20148.6667     -      -    0s
     0     0 20177.5000    0   10          - 20177.5000     -      -    0s
     0     0 20179.8333    0   15          - 20179.8333     -      -    0s
     0     2 20184.5000    0   15          - 20184.5000     -      -    0s
*   21    19              13    21560.000000 21079.0000  2.23%  12.7    0s
*   23    15              13    21535.000000 21079.0000  2.12%  12.0    0s
*   46    21               9    21422.000000 21095.2500  1.53%   8.7    0s
*   84    31              10    21411.000000 21139.7500  1.27%   7.9    0s
*   96    34              19    21374.000000 21139.7500  1.10%   7.4    1s
*   99    26              18    21324.000000 21139.7500  0.86%   7.3    1s
*  108    24              11    21309.000000 21142.5000  0.78%   7.0    1s
*  147     3              12    21294.000000 21270.0000  0.11%   6.7    1s

Cutting planes:
  User: 71
  Zero half: 18

Explored 151 nodes (1200 simplex iterations) in 1.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.129400000000e+04, best bound 2.129400000000e+04, gap 0.0%

Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:23 2012