Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:06:51 2013

Optimize a model with 8473 rows, 1369 columns and 26011 nonzeros
Presolve removed 1687 rows and 720 columns
Presolve time: 0.06s
Presolved: 6786 rows, 649 columns, 20831 nonzeros
Variable types: 14 continuous, 635 integer (635 binary)
Found heuristic solution: objective 29209.000000

Root relaxation: objective 2.335338e+04, 1967 iterations, 0.06 seconds

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

     0     0 23353.3810    0   11 29209.0000 23353.3810  20.0%     -    0s
H    0     0                    23363.000000 23353.3810  0.04%     -    0s
H    0     0                    23359.000000 23353.3810  0.02%     -    0s
     0     0 23353.8491    0   11 23359.0000 23353.8491  0.02%     -    0s
     0     0 23353.8491    0    8 23359.0000 23353.8491  0.02%     -    0s
     0     0 23354.4107    0   23 23359.0000 23354.4107  0.02%     -    0s
     0     1 23354.5427    0   22 23359.0000 23354.5427  0.02%     -    0s

Cutting planes:
  Gomory: 6
  Cover: 6
  Implied bound: 1
  MIR: 6
  Zero half: 4

Explored 5 nodes (2278 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.335900000000e+04, best bound 2.335700000000e+04, gap 0.0086%