Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:36 2013

Optimize a model with 900 rows, 25300 columns and 50850 nonzeros
Presolve removed 200 rows and 150 columns
Presolve time: 0.09s
Presolved: 700 rows, 25150 columns, 50450 nonzeros
Variable types: 25100 continuous, 50 integer (50 binary)

Root relaxation: objective 2.252562e+05, 1990 iterations, 0.08 seconds

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

     0     0 225256.157    0    1          - 225256.157     -      -    0s
H    0     0                    229476.15683 225256.157  1.84%     -    0s
H    0     0                    228401.77049 225256.157  1.38%     -    0s
     0     2 225320.706    0    1 228401.770 225320.706  1.35%     -    0s
H    1     1                    227636.70955 225320.706  1.02%   0.0    0s
H    2     2                    227360.35455 225669.686  0.74%  95.5    0s
H    4     4                    225931.28826 225895.029  0.02%   108    0s
*    7     1               7    225915.15199 225905.011  0.00%  76.9    0s

Explored 8 nodes (2528 simplex iterations) in 0.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.259151519913e+05, best bound 2.259050110937e+05, gap 0.0045%