Gurobi 5.6.3 (linux64) logging started Tue Oct  7 22:05:57 2014

Optimize a model with 13807 rows, 13806 columns and 41184 nonzeros
Presolve time: 0.24s
Presolved: 13807 rows, 13806 columns, 41184 nonzeros
Variable types: 0 continuous, 13806 integer (13806 binary)
Found heuristic solution: objective 17.2263537

Root relaxation: objective 1.120817e+01, 1652 iterations, 0.12 seconds

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

     0     0   11.20817    0  194   17.22635   11.20817  34.9%     -    0s
H    0     0                      11.4315932   11.20817  1.95%     -    0s
H    0     0                      11.2081711   11.20817  0.00%     -    0s

Explored 0 nodes (1652 simplex iterations) in 0.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.120817114862e+01, best bound 1.120816520790e+01, gap 0.0001%