Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:55:10 2013

Optimize a model with 22151 rows, 2601 columns and 67626 nonzeros
Presolve removed 2333 rows and 1322 columns
Presolve time: 0.17s
Presolved: 19818 rows, 1279 columns, 60699 nonzeros
Variable types: 26 continuous, 1253 integer (1253 binary)
Found heuristic solution: objective 46216.000000

Root relaxation: objective 3.330369e+04, 5516 iterations, 0.32 seconds

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

     0     0 33303.6923    0   14 46216.0000 33303.6923  27.9%     -    0s
H    0     0                    33329.000000 33303.6923  0.08%     -    0s
H    0     0                    33320.000000 33303.6923  0.05%     -    0s
H    0     0                    33311.000000 33303.6923  0.02%     -    0s
     0     0 33304.0003    0   37 33311.0000 33304.0003  0.02%     -    0s
     0     0 33304.0003    0   12 33311.0000 33304.0003  0.02%     -    0s
     0     0 33304.0174    0   39 33311.0000 33304.0174  0.02%     -    0s
H    0     0                    33310.000000 33304.0174  0.02%     -    0s
     0     0 33304.0975    0   45 33310.0000 33304.0975  0.02%     -    0s
     0     2 33304.2878    0   45 33310.0000 33304.2878  0.02%     -    0s
H    8     6                    33309.000000 33304.5634  0.01%   0.0    0s
H  144    52                    33308.000000 33305.2647  0.01%  23.1    1s

Cutting planes:
  Gomory: 4
  MIR: 25
  Zero half: 4

Explored 144 nodes (9664 simplex iterations) in 1.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.330800000000e+04, best bound 3.330600000000e+04, gap 0.0060%