Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:02:09 2012

Optimize a model with 14823 rows, 6642 columns and 50787 nonzeros
Presolve removed 1782 rows and 0 columns
Presolve time: 0.34s
Presolved: 13041 rows, 6642 columns, 46575 nonzeros
Variable types: 0 continuous, 6642 integer (6642 binary)
Found heuristic solution: objective 48.0000000

Root relaxation: objective 3.000000e+00, 13115 iterations, 2.92 seconds
Total elapsed time = 5.99s

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

     0     0    3.00000    0  165   48.00000    3.00000  93.8%     -   10s
H    0     0                       4.0000000    3.00000  25.0%     -   10s
H    0     0                       3.0000000    3.00000   0.0%     -   10s

Explored 0 nodes (47158 simplex iterations) in 10.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%