Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:18:51 2012

Optimize a model with 45113 rows, 42642 columns and 176952 nonzeros
Presolve removed 826 rows and 2 columns
Presolve time: 1.11s
Presolved: 44493 rows, 42640 columns, 216898 nonzeros
Variable types: 0 continuous, 42640 integer (42640 binary)
Found heuristic solution: objective 206.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31542    3.0000790e+00   3.020000e+02   0.000000e+00      5s
   36998    3.0000838e+00   8.295181e+00   0.000000e+00     10s
   40299    3.0000000e+00   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 3.000000e+00, 40299 iterations, 13.39 seconds
Total elapsed time = 40.43s

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

     0     0    3.00000    0   52  206.00000    3.00000  98.5%     -   42s
H    0     0                       3.0000000    3.00000   0.0%     -   42s

Explored 0 nodes (97950 simplex iterations) in 42.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%