Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:36:47 2014

Optimize a model with 3907 rows, 3906 columns and 11594 nonzeros
Presolve time: 0.09s
Presolved: 3907 rows, 3906 columns, 11594 nonzeros
Variable types: 0 continuous, 3906 integer (3906 binary)
Found heuristic solution: objective 12.6451420

Root relaxation: objective 7.389467e+00, 695 iterations, 0.02 seconds

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

*    0     0               0       7.3894665    7.38947  0.00%     -    0s

Explored 0 nodes (695 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.389466505144e+00, best bound 7.389466505144e+00, gap 0.0%