Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:51:55 2014

Optimize a model with 6481 rows, 6480 columns and 19280 nonzeros
Presolve time: 0.14s
Presolved: 6481 rows, 6480 columns, 19280 nonzeros
Variable types: 0 continuous, 6480 integer (6480 binary)
Found heuristic solution: objective 17.7340467

Root relaxation: objective 9.544441e+00, 1093 iterations, 0.05 seconds

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

*    0     0               0       9.5444415    9.54444  0.00%     -    0s

Explored 0 nodes (1093 simplex iterations) in 0.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.544441476536e+00, best bound 9.544441476536e+00, gap 0.0%