Gurobi 5.6.3 (linux64) logging started Wed Oct  8 02:55:31 2014

Optimize a model with 42231 rows, 42230 columns and 126280 nonzeros
Presolve time: 1.06s
Presolved: 42231 rows, 42230 columns, 126280 nonzeros
Variable types: 0 continuous, 42230 integer (42230 binary)
Found heuristic solution: objective 20.8909106

Root relaxation: objective 1.411419e+01, 2443 iterations, 0.31 seconds

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

*    0     0               0      14.1141872   14.11419  0.00%     -    1s

Explored 0 nodes (2443 simplex iterations) in 1.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.411418722473e+01, best bound 1.411418722473e+01, gap 0.0%