Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:40 2013

Optimize a model with 428 rows, 1244 columns and 3282 nonzeros
Presolve removed 397 rows and 1146 columns
Presolve time: 0.03s
Presolved: 31 rows, 98 columns, 196 nonzeros
Variable types: 73 continuous, 25 integer (25 binary)

Root relaxation: objective 7.444602e+03, 5 iterations, 0.00 seconds

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

     0     0 7444.60178    0    1          - 7444.60178     -      -    0s
     0     0 7459.12612    0    2          - 7459.12612     -      -    0s
     0     0 7459.12624    0    2          - 7459.12624     -      -    0s
     0     0 7459.14497    0    2          - 7459.14497     -      -    0s
H    0     0                    7459.1534069 7459.14497  0.00%     -    0s

Cutting planes:
  Cover: 1
  Implied bound: 1
  Flow cover: 1

Explored 0 nodes (15 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.459153406944e+03, best bound 7.459144969610e+03, gap 0.0001%