Gurobi 5.6.3 (linux64) logging started Tue Oct  7 23:47:33 2014

Optimize a model with 22053 rows, 22052 columns and 65860 nonzeros
Presolve time: 0.48s
Presolved: 22053 rows, 22052 columns, 65860 nonzeros
Variable types: 0 continuous, 22052 integer (22052 binary)
Found heuristic solution: objective 20.5062783

Root relaxation: objective 1.251982e+01, 1854 iterations, 0.16 seconds

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

*    0     0               0      12.5198210   12.51982  0.00%     -    0s

Explored 0 nodes (1854 simplex iterations) in 0.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.251982097737e+01, best bound 1.251982097737e+01, gap 0.0%