Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:03 2013

Optimize a model with 1070 rows, 3260 columns and 8505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.17s
Presolved: 1060 rows, 3245 columns, 6490 nonzeros
Variable types: 2250 continuous, 995 integer (995 binary)

Root relaxation: objective 1.174557e+04, 39 iterations, 0.00 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11745.9039    0    2          - 11745.9039     -      -    0s
     0     0 11745.9163    0    2          - 11745.9163     -      -    0s
     0     0 11745.9163    0    2          - 11745.9163     -      -    0s
H    0     0                    12152.685980 11745.9163  3.35%     -    0s
     0     2 11747.9260    0    2 12152.6860 11747.9260  3.33%     -    0s
*   18    13              16    11790.178608 11774.4333  0.13%   2.1    0s
*   27    10              17    11779.960340 11774.6878  0.04%   1.9    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 54 nodes (344 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177996034029e+04, best bound 1.177882186272e+04, gap 0.0097%