Gurobi 5.6.3 (linux64) logging started Tue Oct  7 21:02:34 2014

Optimize a model with 8011 rows, 8010 columns and 23852 nonzeros
Presolve time: 0.14s
Presolved: 8011 rows, 8010 columns, 23852 nonzeros
Variable types: 0 continuous, 8010 integer (8010 binary)
Found heuristic solution: objective 13.6817835

Root relaxation: objective 9.586651e+00, 1016 iterations, 0.04 seconds

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

     0     0    9.58665    0   96   13.68178    9.58665  29.9%     -    0s
H    0     0                       9.6031096    9.58665  0.17%     -    0s
H    0     0                       9.5872398    9.58665  0.01%     -    0s

Explored 0 nodes (1016 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.587239766596e+00, best bound 9.586651152694e+00, gap 0.0061%