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 2.033950e+04, 151 iterations, 0.00 seconds

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

     0     0 20339.5000    0   14          - 20339.5000     -      -    0s
     0     0 20426.0000    0   18          - 20426.0000     -      -    0s
     0     0 20459.5000    0   18          - 20459.5000     -      -    0s
     0     0 20475.0000    0    6          - 20475.0000     -      -    0s
     0     0 20484.0000    0   12          - 20484.0000     -      -    0s
     0     0 20490.0000    0   18          - 20490.0000     -      -    0s
     0     0 20509.5000    0    8          - 20509.5000     -      -    0s
     0     0 20510.5000    0   26          - 20510.5000     -      -    0s
     0     0 20510.5000    0   26          - 20510.5000     -      -    0s
     0     2 20513.0000    0   26          - 20513.0000     -      -    0s
*   83    79              64    22756.000000 21709.5000  4.60%   7.1    1s
*  122    82              30    22577.000000 21713.0000  3.83%   6.9    1s
*  147    84              19    22448.000000 21817.0000  2.81%   6.9    1s
*  170    57               8    22223.000000 21822.0000  1.80%   6.7    1s
*  227    56               6    22207.000000 21936.0000  1.22%   6.8    2s
*  252    41              10    22141.000000 21949.6667  0.86%   6.7    2s

Cutting planes:
  User: 76
  Zero half: 17

Explored 435 nodes (2816 simplex iterations) in 3.27 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.214100000000e+04, best bound 2.214000000000e+04, gap 0.0045%

Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:11 2012