Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:29:31 2014

Optimize a model with 1893 rows, 1892 columns and 5590 nonzeros
Presolve time: 0.03s
Presolved: 1893 rows, 1892 columns, 5590 nonzeros
Variable types: 0 continuous, 1892 integer (1892 binary)
Found heuristic solution: objective 9.0551381

Root relaxation: objective 6.416973e+00, 444 iterations, 0.01 seconds

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

*    0     0               0       6.4169727    6.41697  0.00%     -    0s

Explored 0 nodes (444 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.416972736866e+00, best bound 6.416972736866e+00, gap 0.0%