Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:14:23 2012

Optimize a model with 47275 rows, 45156 columns and 185922 nonzeros
Presolve removed 1304 rows and 6362 columns
Presolve time: 1.20s
Presolved: 45971 rows, 38794 columns, 175948 nonzeros
Variable types: 0 continuous, 38794 integer (38794 binary)
Found heuristic solution: objective 212.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25298    3.0000767e+00   5.964427e+02   0.000000e+00      5s
   30086    3.0000832e+00   1.486628e+01   0.000000e+00     10s
   32811    3.0000000e+00   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 3.000000e+00, 32811 iterations, 12.44 seconds
Total elapsed time = 37.70s
Total elapsed time = 40.26s

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

     0     0    3.00000    0   46  212.00000    3.00000  98.6%     -   40s
H    0     0                       3.0000000    3.00000   0.0%     -   40s

Explored 0 nodes (91253 simplex iterations) in 40.68 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%