Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:22:36 2013

Optimize a model with 9177 rows, 1444 columns and 28158 nonzeros
Presolve removed 1246 rows and 737 columns
Presolve time: 0.04s
Presolved: 7931 rows, 707 columns, 24458 nonzeros
Variable types: 19 continuous, 688 integer (688 binary)
Found heuristic solution: objective 33001.000000

Root relaxation: objective 2.496695e+04, 5318 iterations, 0.19 seconds

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

     0     0 24966.9524    0   10 33001.0000 24966.9524  24.3%     -    0s
H    0     0                    24981.000000 24966.9524  0.06%     -    0s
H    0     0                    24979.000000 24966.9524  0.05%     -    0s
     0     0 24967.1753    0   23 24979.0000 24967.1753  0.05%     -    0s
     0     0 24967.1753    0   10 24979.0000 24967.1753  0.05%     -    0s
     0     0 24967.3251    0   24 24979.0000 24967.3251  0.05%     -    0s
H    0     0                    24977.000000 24967.3251  0.04%     -    0s
H    0     0                    24976.000000 24967.3251  0.03%     -    0s
     0     2 24967.4509    0   23 24976.0000 24967.4509  0.03%     -    0s
H    4     3                    24974.000000 24967.4602  0.03%   0.2    0s
H    9     7                    24971.000000 24967.9305  0.01%   0.1    0s

Cutting planes:
  Gomory: 4
  Cover: 1
  MIR: 16
  Zero half: 8

Explored 60 nodes (6650 simplex iterations) in 0.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.497100000000e+04, best bound 2.496900000000e+04, gap 0.0080%