Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:17:05 2013

Optimize a model with 5488 rows, 1024 columns and 16896 nonzeros
Presolve removed 682 rows and 513 columns
Presolve time: 0.04s
Presolved: 4806 rows, 511 columns, 15026 nonzeros
Variable types: 21 continuous, 490 integer (490 binary)
Found heuristic solution: objective 19311.000000

Root relaxation: objective 1.367348e+04, 3884 iterations, 0.12 seconds

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

     0     0 13673.4783    0    8 19311.0000 13673.4783  29.2%     -    0s
H    0     0                    13693.000000 13673.4783  0.14%     -    0s
H    0     0                    13685.000000 13673.4783  0.08%     -    0s
H    0     0                    13682.000000 13673.4783  0.06%     -    0s
     0     0 13674.0000    0    9 13682.0000 13674.0000  0.06%     -    0s
     0     0 13674.0000    0    8 13682.0000 13674.0000  0.06%     -    0s
H    0     0                    13680.000000 13674.0000  0.04%     -    0s
     0     0 13674.0000    0   14 13680.0000 13674.0000  0.04%     -    0s
     0     2 13674.0000    0   13 13680.0000 13674.0000  0.04%     -    0s
H  357   102                    13679.000000 13675.4692  0.03%  14.6    0s

Cutting planes:
  Gomory: 6
  Cover: 28
  Implied bound: 2
  Clique: 3
  MIR: 54
  Zero half: 17

Explored 876 nodes (15842 simplex iterations) in 0.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.367900000000e+04, best bound 1.367800000000e+04, gap 0.0073%