Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:50:57 2012

Optimize a model with 13746 rows, 6320 columns and 47242 nonzeros
Presolve removed 2055 rows and 79 columns
Presolve time: 0.29s
Presolved: 11691 rows, 6241 columns, 42186 nonzeros
Variable types: 0 continuous, 6241 integer (6241 binary)
Found heuristic solution: objective 49.0000000

Root relaxation: objective 3.000000e+00, 10956 iterations, 1.59 seconds
Total elapsed time = 5.08s

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

     0     0    3.00000    0  117   49.00000    3.00000  93.9%     -    5s
H    0     0                       5.0000000    3.00000  40.0%     -    5s
H    0     0                       4.0000000    3.00000  25.0%     -    5s
H    0     0                       3.0000000    3.00000   0.0%     -    5s

Explored 0 nodes (30331 simplex iterations) in 5.26 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%