Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:37:29 2012

Optimize a model with 66989 rows, 53592 columns and 253405 nonzeros
Presolve removed 1872 rows and 5084 columns
Presolve time: 5.01s
Presolved: 65117 rows, 48508 columns, 243139 nonzeros
Variable types: 0 continuous, 48508 integer (48508 binary)
Found heuristic solution: objective 231.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   31231    3.0000873e+00   2.051351e+01   0.000000e+00      5s
   35200    3.0000908e+00   1.367388e+02   0.000000e+00     10s
   38287    3.0000938e+00   3.607880e+01   0.000000e+00     15s
   41521    3.0000968e+00   2.588357e+01   0.000000e+00     20s
   44755    3.0000993e+00   1.375351e+01   0.000000e+00     25s
   47989    3.0001037e+00   1.433396e+01   0.000000e+00     30s
   50782    3.0001059e+00   1.847778e+02   0.000000e+00     35s
   53869    3.0001100e+00   1.409973e+01   0.000000e+00     40s
   55971    3.0000000e+00   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 3.000000e+00, 55971 iterations, 43.32 seconds
Total elapsed time = 99.58s
Total elapsed time = 101.81s

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

*    0     0               0       3.0000000    3.00000   0.0%     -  102s

Explored 0 nodes (133989 simplex iterations) in 102.84 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%