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

Optimize a model with 16261 rows, 2116 columns and 49726 nonzeros
Presolve removed 1996 rows and 1084 columns
Presolve time: 0.12s
Presolved: 14265 rows, 1032 columns, 43609 nonzeros
Variable types: 19 continuous, 1013 integer (1013 binary)
Found heuristic solution: objective 51851.000000

Root relaxation: objective 4.120091e+04, 4663 iterations, 0.19 seconds

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

     0     0 41200.9111    0   10 51851.0000 41200.9111  20.5%     -    0s
H    0     0                    41220.000000 41200.9111  0.05%     -    0s
H    0     0                    41217.000000 41200.9111  0.04%     -    0s
H    0     0                    41208.000000 41200.9111  0.02%     -    0s
     0     0 41202.5357    0   15 41208.0000 41202.5357  0.01%     -    0s
     0     0 41202.5357    0    7 41208.0000 41202.5357  0.01%     -    0s
     0     0 41203.8457    0   20 41208.0000 41203.8457  0.01%     -    0s
     0     1 41203.8799    0   20 41208.0000 41203.8799  0.01%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 2
  MIR: 8
  Zero half: 2

Explored 1 nodes (4857 simplex iterations) in 0.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.120800000000e+04, best bound 4.120400000000e+04, gap 0.0097%