Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:59 2013

Optimize a model with 1070 rows, 3260 columns and 8505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.16s
Presolved: 1060 rows, 3245 columns, 6490 nonzeros
Variable types: 2250 continuous, 995 integer (995 binary)

Root relaxation: objective 9.601887e+03, 28 iterations, 0.00 seconds

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

     0     0 9601.88662    0    1          - 9601.88662     -      -    0s
     0     0 9601.99897    0    2          - 9601.99897     -      -    0s
     0     0 9601.99897    0    2          - 9601.99897     -      -    0s
H    0     0                    9889.4732902 9601.99897  2.91%     -    0s
     0     2 9602.10993    0    2 9889.47329 9602.10993  2.91%     -    0s
H   27    20                    9661.8906126 9604.36942  0.60%   1.5    0s
H   81    74                    9660.2104083 9604.36942  0.58%   2.4    0s
*  315   154             314    9659.5026973 9604.36942  0.57%   1.8    0s
H 1388     3                    9625.9499815 9610.50775  0.16%   2.0    2s
* 1563     6              25    9625.5191530 9616.73744  0.09%   2.0    2s
* 1564     5              24    9625.0868949 9616.73744  0.09%   2.0    2s
* 1565     4              23    9624.6532180 9616.73744  0.08%   2.0    2s
* 1566     3              22    9624.2181330 9616.73744  0.08%   2.0    2s

Cutting planes:
  Gomory: 1

Explored 1602 nodes (3586 simplex iterations) in 2.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.624218133012e+03, best bound 9.623321150612e+03, gap 0.0093%