Gurobi 5.0.1 (linux64) logging started Sat Nov 17 02:46:30 2012

Optimize a model with 52579 rows, 48620 columns and 205258 nonzeros
Presolve removed 911 rows and 6382 columns
Presolve time: 1.28s
Presolved: 51668 rows, 42238 columns, 196208 nonzeros
Variable types: 0 continuous, 42238 integer (42238 binary)
Found heuristic solution: objective 220.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34251    3.0000833e+00   1.300000e+01   0.000000e+00      5s
   42112    3.0000863e+00   7.813080e+00   0.000000e+00     10s
   47033    3.0000882e+00   4.115656e+00   0.000000e+00     15s
   49783    3.0000000e+00   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 3.000000e+00, 49783 iterations, 18.04 seconds
Total elapsed time = 54.70s
Total elapsed time = 55.68s

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

     0     0    3.00000    0   48  220.00000    3.00000  98.6%     -   56s
H    0     0                       3.0000000    3.00000   0.0%     -   56s

Explored 0 nodes (104757 simplex iterations) in 56.40 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%