Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:11:25 2013

Optimize a model with 5070 rows, 15260 columns and 40505 nonzeros
Presolve removed 10 rows and 15 columns
Presolve time: 0.28s
Presolved: 5060 rows, 15245 columns, 30490 nonzeros
Variable types: 10250 continuous, 4995 integer (4995 binary)

Root relaxation: objective 1.204447e+04, 44 iterations, 0.00 seconds

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

     0     0 12044.4669    0    1          - 12044.4669     -      -    0s
     0     0 12044.5704    0    2          - 12044.5704     -      -    0s
     0     0 12044.5704    0    2          - 12044.5704     -      -    0s
     0     2 12044.6247    0    2          - 12044.6247     -      -    1s
   532    97 12089.4349  532    2          - 12089.4349     -    1.3    5s
* 1145   704            1144    12360.567285 12097.7764  2.13%   1.9    9s
H 1147   699                    12360.567282 12097.7764  2.13%   1.9   10s
* 1152     0              93    12097.776352 12097.7764   0.0%   1.9   10s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 1153 nodes (3220 simplex iterations) in 10.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.209777635186e+04, best bound 1.209777635186e+04, gap 0.0%