Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:56:23 2014

Optimize a model with 7141 rows, 7140 columns and 21252 nonzeros
Presolve time: 0.14s
Presolved: 7141 rows, 7140 columns, 21252 nonzeros
Variable types: 0 continuous, 7140 integer (7140 binary)
Found heuristic solution: objective 16.6146233

Root relaxation: objective 8.824248e+00, 825 iterations, 0.03 seconds

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

*    0     0               0       8.8242482    8.82425  0.00%     -    0s

Explored 0 nodes (825 simplex iterations) in 0.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.824248241414e+00, best bound 8.824248241414e+00, gap 0.0%