Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:13:26 2013

Optimize a model with 1726 rows, 49204 columns and 2559442 nonzeros
Presolve removed 27 rows and 122 columns (presolve time = 5s) ...
Presolve removed 33 rows and 186 columns (presolve time = 10s) ...
Presolve removed 33 rows and 186 columns
Presolve time: 11.93s
Presolved: 1693 rows, 49018 columns, 2550195 nonzeros
Variable types: 0 continuous, 49018 integer (49018 binary)
Found heuristic solution: objective 22833.000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7471    1.7123142e+04   2.398238e+03   0.000000e+00      5s
   10747    1.7209260e+04   1.972240e+03   0.000000e+00     10s
   11856    1.7213909e+04   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 1.721391e+04, 11856 iterations, 12.96 seconds

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

     0     0 17213.9091    0  208 22833.0000 17213.9091  24.6%     -   26s
H    0     0                    19054.000000 17213.9091  9.66%     -   30s
     0     0 17223.0000    0  212 19054.0000 17223.0000  9.61%     -   36s
     0     0 17234.0000    0  191 19054.0000 17234.0000  9.55%     -   41s
*    0     0               0    17237.000000 17237.0000   0.0%     -   46s

Cutting planes:
  Clique: 40
  Zero half: 10

Explored 0 nodes (13150 simplex iterations) in 46.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.723700000000e+04, best bound 1.723700000000e+04, gap 0.0000%