Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:51:12 2014

Optimize a model with 41821 rows, 41820 columns and 125052 nonzeros
Presolve time: 1.09s
Presolved: 41821 rows, 41820 columns, 125052 nonzeros
Variable types: 0 continuous, 41820 integer (41820 binary)
Found heuristic solution: objective 22.2417026

Root relaxation: objective 1.433214e+01, 2456 iterations, 0.31 seconds

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

*    0     0               0      14.3321431   14.33214  0.00%     -    1s

Explored 0 nodes (2456 simplex iterations) in 1.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.433214306936e+01, best bound 1.433214306936e+01, gap 0.0%