Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:17:19 2014

Optimize a model with 38613 rows, 38612 columns and 115444 nonzeros
Presolve time: 0.99s
Presolved: 38613 rows, 38612 columns, 115444 nonzeros
Variable types: 0 continuous, 38612 integer (38612 binary)
Found heuristic solution: objective 21.4086538

Root relaxation: objective 1.456705e+01, 2566 iterations, 0.34 seconds

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

*    0     0               0      14.5670513   14.56705  0.00%     -    1s

Explored 0 nodes (2566 simplex iterations) in 1.43 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.456705129703e+01, best bound 1.456705129703e+01, gap 0.0%