Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:12:55 2013

Optimize a model with 696 rows, 256 columns and 2176 nonzeros
Presolve removed 320 rows and 146 columns
Presolve time: 0.00s
Presolved: 376 rows, 110 columns, 1203 nonzeros
Variable types: 6 continuous, 104 integer (104 binary)
Found heuristic solution: objective 6012.0000000
Found heuristic solution: objective 5471.0000000

Root relaxation: objective 4.791367e+03, 9 iterations, 0.00 seconds

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

     0     0 4791.36684    0    4 5471.00000 4791.36684  12.4%     -    0s
     0     0 4797.65882    0    6 5471.00000 4797.65882  12.3%     -    0s
H    0     0                    4807.0000000 4797.65882  0.19%     -    0s
     0     0 4800.03901    0   13 4807.00000 4800.03901  0.14%     -    0s
     0     0 4800.03901    0    3 4807.00000 4800.03901  0.14%     -    0s
H    0     0                    4806.0000000 4800.03901  0.12%     -    0s
     0     0 4800.03901    0    7 4806.00000 4800.03901  0.12%     -    0s
     0     0 4800.04272    0    5 4806.00000 4800.04272  0.12%     -    0s
     0     0 4801.03702    0    6 4806.00000 4801.03702  0.10%     -    0s
     0     0 4801.36842    0    7 4806.00000 4801.36842  0.10%     -    0s
     0     0 4803.92308    0    2 4806.00000 4803.92308  0.04%     -    0s
     0     0 4806.00000    0    2 4806.00000 4806.00000   0.0%     -    0s

Cutting planes:
  MIR: 6

Explored 1 nodes (57 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.806000000000e+03, best bound 4.806000000000e+03, gap 0.0%