Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:53:09 2013

Optimize a model with 13287 rows, 1849 columns and 40678 nonzeros
Presolve removed 1272 rows and 928 columns
Presolve time: 0.10s
Presolved: 12015 rows, 921 columns, 37123 nonzeros
Variable types: 27 continuous, 894 integer (894 binary)
Found heuristic solution: objective 35417.000000

Root relaxation: objective 2.427627e+04, 9257 iterations, 0.44 seconds

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

     0     0 24276.2652    0   14 35417.0000 24276.2652  31.5%     -    0s
H    0     0                    24289.000000 24276.2652  0.05%     -    0s
H    0     0                    24285.000000 24276.2652  0.04%     -    0s
     0     0 24277.3368    0   25 24285.0000 24277.3368  0.03%     -    0s
     0     0 24277.3368    0   12 24285.0000 24277.3368  0.03%     -    0s
H    0     0                    24283.000000 24277.3368  0.02%     -    0s
     0     0 24277.3368    0   21 24283.0000 24277.3368  0.02%     -    0s
     0     2 24277.6012    0   21 24283.0000 24277.6012  0.02%     -    0s
H  863    96                    24282.000000 24280.1484  0.01%  15.6    1s

Cutting planes:
  Gomory: 8
  Cover: 44
  Implied bound: 1
  MIR: 34
  GUB cover: 1
  Zero half: 14

Explored 863 nodes (24141 simplex iterations) in 1.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.428200000000e+04, best bound 2.428100000000e+04, gap 0.0041%