Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:30:01 2014

Optimize a model with 2071 rows, 2070 columns and 6120 nonzeros
Presolve time: 0.03s
Presolved: 2071 rows, 2070 columns, 6120 nonzeros
Variable types: 0 continuous, 2070 integer (2070 binary)
Found heuristic solution: objective 10.4198758

Root relaxation: objective 6.404458e+00, 440 iterations, 0.01 seconds

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

*    0     0               0       6.4044579    6.40446  0.00%     -    0s

Explored 0 nodes (440 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.404457859868e+00, best bound 6.404457859868e+00, gap 0.0%