Gurobi 5.0.1 (linux64) logging started Thu Nov 29 23:02:09 2012

Optimize a model with 39205 rows, 39204 columns and 194439 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.44s
Presolved: 39205 rows, 39203 columns, 194242 nonzeros
Variable types: 197 continuous, 39006 integer (39006 binary)
Found heuristic solution: objective 5179.0000000

Root relaxation: objective 4.537244e+03, 2888 iterations, 0.32 seconds
Total elapsed time = 6.25s

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

     0     0 4537.24365    0   11 5179.00000 4537.24365  12.4%     -    8s
     0     0 4541.00000    0   51 5179.00000 4541.00000  12.3%     -    9s
H    0     0                    4541.0000000 4541.00000   0.0%     -    9s

Cutting planes:
  Gomory: 2
  Implied bound: 1

Explored 0 nodes (20743 simplex iterations) in 9.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.541000000000e+03, best bound 4.541000000000e+03, gap 0.0%