Gurobi 5.6.3 (linux64) logging started Wed Oct  8 01:23:01 2014

Optimize a model with 32943 rows, 32942 columns and 98464 nonzeros
Presolve time: 0.80s
Presolved: 32943 rows, 32942 columns, 98464 nonzeros
Variable types: 0 continuous, 32942 integer (32942 binary)
Found heuristic solution: objective 18.8072757

Root relaxation: objective 1.367540e+01, 2395 iterations, 0.28 seconds

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

     0     0   13.67540    0  156   18.80728   13.67540  27.3%     -    1s
H    0     0                      13.7563475   13.67540  0.59%     -    1s
     0     0   13.68591    0  198   13.75635   13.68591  0.51%     -    1s
     0     0   13.68591    0  130   13.75635   13.68591  0.51%     -    1s
     0     0   13.68936    0  203   13.75635   13.68936  0.49%     -    1s
     0     0   13.69130    0  209   13.75635   13.69130  0.47%     -    1s
H    0     0                      13.7064814   13.69130  0.11%     -    1s
     0     0   13.69198    0  172   13.70648   13.69198  0.11%     -    1s
     0     1   13.69345    0  172   13.70648   13.69345  0.10%     -    2s
*    3     2              11      13.6990141   13.69901  0.00%   0.7    2s

Explored 3 nodes (4060 simplex iterations) in 2.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.369901411497e+01, best bound 1.369901411497e+01, gap 0.0%