Gurobi 5.6.3 (linux64) logging started Wed Oct  8 00:22:06 2014

Optimize a model with 26407 rows, 26406 columns and 78894 nonzeros
Presolve time: 0.59s
Presolved: 26407 rows, 26406 columns, 78894 nonzeros
Variable types: 0 continuous, 26406 integer (26406 binary)
Found heuristic solution: objective 18.6170849

Root relaxation: objective 1.269106e+01, 2205 iterations, 0.24 seconds

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

*    0     0               0      12.6910613   12.69106  0.00%     -    0s

Explored 0 nodes (2205 simplex iterations) in 0.89 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.269106130774e+01, best bound 1.269106130774e+01, gap 0.0%