Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:24:39 2013

Optimize a model with 1793 rows, 484 columns and 5566 nonzeros
Presolve removed 497 rows and 257 columns
Presolve time: 0.01s
Presolved: 1296 rows, 227 columns, 4077 nonzeros
Variable types: 10 continuous, 217 integer (217 binary)
Found heuristic solution: objective 10222.000000

Root relaxation: objective 7.614692e+03, 901 iterations, 0.02 seconds

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

     0     0 7614.69231    0    6 10222.0000 7614.69231  25.5%     -    0s
H    0     0                    7645.0000000 7614.69231  0.40%     -    0s
H    0     0                    7626.0000000 7614.69231  0.15%     -    0s
     0     0 7615.93498    0   13 7626.00000 7615.93498  0.13%     -    0s
     0     0 7615.93498    0    6 7626.00000 7615.93498  0.13%     -    0s
     0     0 7616.14426    0   11 7626.00000 7616.14426  0.13%     -    0s
H    0     0                    7618.0000000 7616.14426  0.02%     -    0s
     0     0 7616.71154    0   12 7618.00000 7616.71154  0.02%     -    0s
     0     1 7616.71851    0   12 7618.00000 7616.71851  0.02%     -    0s

Cutting planes:
  Cover: 1
  MIR: 7
  Zero half: 1

Explored 1 nodes (1011 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.618000000000e+03, best bound 7.618000000000e+03, gap 0.0%