Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:30:44 2013

Optimize a model with 2324 rows, 576 columns and 7200 nonzeros
Presolve removed 607 rows and 308 columns
Presolve time: 0.02s
Presolved: 1717 rows, 268 columns, 5298 nonzeros
Variable types: 7 continuous, 261 integer (261 binary)
Found heuristic solution: objective 11152.000000

Root relaxation: objective 8.661000e+03, 675 iterations, 0.01 seconds

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

     0     0 8661.00000    0    9 11152.0000 8661.00000  22.3%     -    0s
H    0     0                    8672.0000000 8661.00000  0.13%     -    0s
H    0     0                    8670.0000000 8661.00000  0.10%     -    0s
     0     0 8661.15590    0   15 8670.00000 8661.15590  0.10%     -    0s
     0     0 8661.15590    0    7 8670.00000 8661.15590  0.10%     -    0s
H    0     0                    8666.0000000 8661.15590  0.06%     -    0s
     0     0 8661.29649    0   19 8666.00000 8661.29649  0.05%     -    0s
     0     0 8661.76578    0   19 8666.00000 8661.76578  0.05%     -    0s
     0     0 8661.90344    0   19 8666.00000 8661.90344  0.05%     -    0s
     0     0 8662.53215    0   20 8666.00000 8662.53215  0.04%     -    0s
     0     0 8662.64766    0   21 8666.00000 8662.64766  0.04%     -    0s
     0     0 8662.64853    0   21 8666.00000 8662.64853  0.04%     -    0s
     0     0 8662.65550    0   20 8666.00000 8662.65550  0.04%     -    0s
     0     0 8662.74987    0   13 8666.00000 8662.74987  0.04%     -    0s
     0     2 8662.80402    0   13 8666.00000 8662.80402  0.04%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 5
  Implied bound: 1
  Clique: 1
  MIR: 14

Explored 17 nodes (937 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.666000000000e+03, best bound 8.666000000000e+03, gap 0.0%