Gurobi 5.0.1 (linux64) logging started Mon Feb  4 17:34:25 2013

Optimize a model with 6579 rows, 1156 columns and 20230 nonzeros
Presolve removed 1608 rows and 620 columns
Presolve time: 0.05s
Presolved: 4971 rows, 536 columns, 15280 nonzeros
Variable types: 12 continuous, 524 integer (524 binary)
Found heuristic solution: objective 24942.000000

Root relaxation: objective 2.123651e+04, 1437 iterations, 0.04 seconds

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

     0     0 21236.5143    0    7 24942.0000 21236.5143  14.9%     -    0s
H    0     0                    21256.000000 21236.5143  0.09%     -    0s
H    0     0                    21255.000000 21236.5143  0.09%     -    0s
     0     0 21240.2265    0   14 21255.0000 21240.2265  0.07%     -    0s
     0     0 21240.2265    0    7 21255.0000 21240.2265  0.07%     -    0s
     0     0 21242.1202    0   16 21255.0000 21242.1202  0.06%     -    0s
H    0     0                    21254.000000 21242.1202  0.06%     -    0s
     0     2 21244.6992    0   16 21254.0000 21244.6992  0.04%     -    0s
H    1     2                    21250.000000 21244.6992  0.02%   0.0    0s

Cutting planes:
  Gomory: 5
  Cover: 2
  MIR: 8
  Zero half: 1

Explored 5 nodes (1615 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.125000000000e+04, best bound 2.125000000000e+04, gap 0.0%