Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:50 2012

Optimize a model with 3899 rows, 2550 columns and 13998 nonzeros
Presolve removed 402 rows and 2 columns
Presolve time: 0.10s
Presolved: 3547 rows, 2548 columns, 15358 nonzeros
Variable types: 0 continuous, 2548 integer (2548 binary)
Found heuristic solution: objective 50.0000000

Root relaxation: objective 3.000000e+00, 2503 iterations, 0.13 seconds

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

     0     0    3.00000    0   20   50.00000    3.00000  94.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Explored 0 nodes (8301 simplex iterations) in 0.63 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%