Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:46 2013

Optimize a model with 432 rows, 846 columns and 2890 nonzeros
Presolve removed 80 rows and 146 columns
Presolve time: 0.03s
Presolved: 352 rows, 700 columns, 2085 nonzeros
Variable types: 358 continuous, 342 integer (342 binary)

Root relaxation: objective 7.662990e+03, 11 iterations, 0.00 seconds

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

     0     0 7662.98980    0    2          - 7662.98980     -      -    0s
     0     0 7663.06510    0    2          - 7663.06510     -      -    0s
     0     0 7663.10614    0    2          - 7663.10614     -      -    0s
     0     0 7663.12625    0    2          - 7663.12625     -      -    0s
     0     0 7663.14608    0    2          - 7663.14608     -      -    0s
     0     0 7663.16565    0    2          - 7663.16565     -      -    0s
H    0     0                    7670.7784560 7663.16565  0.10%     -    0s
     0     1 7663.20404    0    2 7670.77846 7663.20404  0.10%     -    0s
H   54     0                    7666.4580550 7663.97032  0.03%   3.0    0s
H  108     0                    7664.6447497 7664.47761  0.00%   3.0    0s

Cutting planes:
  Gomory: 1
  Cover: 2

Explored 108 nodes (364 simplex iterations) in 0.21 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.664644749744e+03, best bound 7.664477612824e+03, gap 0.0022%