Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:17:02 2013

Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros
Presolve removed 746 rows and 519 columns
Presolve time: 0.04s
Presolved: 4742 rows, 505 columns, 14719 nonzeros
Variable types: 17 continuous, 488 integer (488 binary)
Found heuristic solution: objective 23841.000000
Found heuristic solution: objective 20238.000000

Root relaxation: objective 1.673232e+04, 2329 iterations, 0.06 seconds

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

     0     0 16732.3182    0   10 20238.0000 16732.3182  17.3%     -    0s
H    0     0                    16754.000000 16732.3182  0.13%     -    0s
H    0     0                    16747.000000 16732.3182  0.09%     -    0s
H    0     0                    16744.000000 16732.3182  0.07%     -    0s
     0     0 16732.4545    0   13 16744.0000 16732.4545  0.07%     -    0s
     0     0 16732.4545    0   10 16744.0000 16732.4545  0.07%     -    0s
H    0     0                    16743.000000 16732.4545  0.06%     -    0s
     0     0 16732.4545    0   11 16743.0000 16732.4545  0.06%     -    0s
H    0     0                    16738.000000 16732.4545  0.03%     -    0s
     0     1 16732.4545    0   11 16738.0000 16732.4545  0.03%     -    0s
H    7     4                    16737.000000 16733.9601  0.02%   0.9    0s

Cutting planes:
  Gomory: 10
  Cover: 1
  Implied bound: 1
  MIR: 13
  GUB cover: 2
  Zero half: 6

Explored 19 nodes (3051 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.673700000000e+04, best bound 1.673600000000e+04, gap 0.0060%