Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:15:31 2012

Optimize a model with 64979 rows, 52212 columns and 246010 nonzeros
Presolve removed 2751 rows and 3420 columns (presolve time = 5s) ...
Presolve removed 2753 rows and 3422 columns
Presolve time: 5.12s
Presolved: 62226 rows, 48790 columns, 235204 nonzeros
Variable types: 0 continuous, 48790 integer (48790 binary)
Found heuristic solution: objective 228.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   32048    3.0000956e+00   2.527586e+01   0.000000e+00      5s
   35936    3.0000989e+00   9.823547e+01   0.000000e+00     10s
   38816    3.0001014e+00   2.904688e+01   0.000000e+00     15s
   42272    3.0001052e+00   2.168910e+01   0.000000e+00     20s
   45872    3.0001109e+00   1.503470e+01   0.000000e+00     25s
   49184    3.0001164e+00   5.870261e+00   0.000000e+00     30s
   52064    3.0001195e+00   3.010133e+00   0.000000e+00     35s
   53741    3.0000000e+00   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 3.000000e+00, 53741 iterations, 38.04 seconds
Total elapsed time = 75.93s

    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%     -   80s

Explored 0 nodes (129484 simplex iterations) in 80.17 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%