Gurobi 5.6.3 (linux64) logging started Tue Oct  7 21:07:26 2014

Optimize a model with 8557 rows, 8556 columns and 25484 nonzeros
Presolve time: 0.17s
Presolved: 8557 rows, 8556 columns, 25484 nonzeros
Variable types: 0 continuous, 8556 integer (8556 binary)
Found heuristic solution: objective 15.4671826

Root relaxation: objective 8.935518e+00, 948 iterations, 0.04 seconds

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

*    0     0               0       8.9355180    8.93552  0.00%     -    0s

Explored 0 nodes (948 simplex iterations) in 0.23 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.935517987296e+00, best bound 8.935517987296e+00, gap 0.0%