Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:14:16 2013

Optimize a model with 833 rows, 289 columns and 2601 nonzeros
Presolve removed 283 rows and 156 columns
Presolve time: 0.00s
Presolved: 550 rows, 133 columns, 1762 nonzeros
Variable types: 8 continuous, 125 integer (125 binary)
Found heuristic solution: objective 4918.0000000

Root relaxation: objective 4.118555e+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 4118.55456    0    7 4918.00000 4118.55456  16.3%     -    0s
     0     0 4124.62238    0   12 4918.00000 4124.62238  16.1%     -    0s
H    0     0                    4141.0000000 4124.62238  0.40%     -    0s
H    0     0                    4132.0000000 4124.62238  0.18%     -    0s
     0     0 4126.15910    0   16 4132.00000 4126.15910  0.14%     -    0s
     0     0 4126.15910    0    7 4132.00000 4126.15910  0.14%     -    0s
H    0     0                    4129.0000000 4126.15910  0.07%     -    0s
     0     0 4126.15910    0    7 4129.00000 4126.15910  0.07%     -    0s
     0     0 4126.79179    0   14 4129.00000 4126.79179  0.05%     -    0s
     0     1 4127.61538    0   15 4129.00000 4127.61538  0.03%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 1
  Implied bound: 1
  MIR: 5

Explored 4 nodes (177 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.129000000000e+03, best bound 4.129000000000e+03, gap 0.0%