Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:39 2013

Optimize a model with 1032 rows, 2046 columns and 7090 nonzeros
Presolve removed 26 rows and 472 columns
Presolve time: 0.15s
Presolved: 1006 rows, 1574 columns, 4701 nonzeros
Variable types: 1018 continuous, 556 integer (556 binary)

Root relaxation: objective 3.882900e+03, 14 iterations, 0.00 seconds

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

     0     0 3882.89996    0    2          - 3882.89996     -      -    0s
     0     0 3883.82338    0    3          - 3883.82338     -      -    0s
*    0     0               0    3893.9001087 3893.90011   0.0%     -    0s

Explored 0 nodes (39 simplex iterations) in 0.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.893900108683e+03, best bound 3.893900108683e+03, gap 0.0%