Gurobi 5.0.1 (linux64) logging started Wed Nov 28 03:51:37 2012

Optimize a model with 4162 rows, 4128 columns and 15968 nonzeros
Presolve removed 404 rows and 388 columns
Presolve time: 0.07s
Presolved: 3758 rows, 3740 columns, 14936 nonzeros
Variable types: 3468 continuous, 272 integer (272 binary)
Found heuristic solution: objective 385.0000000
Found heuristic solution: objective 173.0000000
Found heuristic solution: objective 169.0000000

Root relaxation: objective 3.900000e+01, 2121 iterations, 0.12 seconds

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

*    0     0               0      39.0000000   39.00000   0.0%     -    0s

Explored 0 nodes (3622 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%