Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:22:35 2013

Optimize a model with 1248 rows, 23470 columns and 1272147 nonzeros
Presolve removed 3 rows and 0 columns
Presolve time: 1.01s
Presolved: 1245 rows, 23470 columns, 1272021 nonzeros
Variable types: 0 continuous, 23470 integer (23470 binary)
Found heuristic solution: objective 12569.000000

Root relaxation: objective 9.187500e+03, 6703 iterations, 3.35 seconds
Total elapsed time = 5.25s

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

     0     0 9187.50000    0   70 12569.0000 9187.50000  26.9%     -    5s
H    0     0                    10267.000000 9187.50000  10.5%     -    6s
H    0     0                    9316.0000000 9187.50000  1.38%     -    6s
     0     0 9195.83333    0   75 9316.00000 9195.83333  1.29%     -    8s
H    0     0                    9306.0000000 9195.83333  1.18%     -   15s
*    0     0               0    9196.0000000 9196.00000   0.0%     -   17s

Explored 0 nodes (12399 simplex iterations) in 17.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.196000000000e+03, best bound 9.196000000000e+03, gap 0.0%