Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:17:00 2013

Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros
Presolve removed 1227 rows and 543 columns
Presolve time: 0.04s
Presolved: 4261 rows, 481 columns, 13102 nonzeros
Variable types: 11 continuous, 470 integer (470 binary)
Found heuristic solution: objective 28030.000000

Root relaxation: objective 2.353716e+04, 1879 iterations, 0.05 seconds

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

     0     0 23537.1613    0    6 28030.0000 23537.1613  16.0%     -    0s
H    0     0                    23556.000000 23537.1613  0.08%     -    0s
H    0     0                    23550.000000 23537.1613  0.05%     -    0s
     0     0 23538.0503    0    6 23550.0000 23538.0503  0.05%     -    0s
     0     0 23538.0503    0    5 23550.0000 23538.0503  0.05%     -    0s
H    0     0                    23548.000000 23538.0503  0.04%     -    0s
H    0     0                    23542.000000 23538.0503  0.02%     -    0s
     0     0 23538.9503    0   15 23542.0000 23538.9503  0.01%     -    0s
     0     1 23539.0445    0   15 23542.0000 23539.0445  0.01%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 1
  Implied bound: 2
  Clique: 1
  MIR: 6

Explored 4 nodes (2014 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.354200000000e+04, best bound 2.354100000000e+04, gap 0.0042%