Gurobi 5.0.1 (linux64) logging started Sat Nov 17 04:54:30 2012

Optimize a model with 63786 rows, 51756 columns and 241980 nonzeros
Presolve removed 1378 rows and 3180 columns
Presolve time: 4.74s
Presolved: 62408 rows, 48576 columns, 234847 nonzeros
Variable types: 0 continuous, 48576 integer (48576 binary)
Found heuristic solution: objective 227.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   40666    3.0000846e+00   3.004762e+01   0.000000e+00      5s
   47856    3.0000922e+00   1.807265e+02   0.000000e+00     10s
   51024    3.0000945e+00   4.089427e+01   0.000000e+00     15s
   54336    3.0000970e+00   3.355214e+02   0.000000e+00     20s
   57648    3.0001002e+00   1.622812e+02   0.000000e+00     25s
   60816    3.0001041e+00   3.353571e+02   0.000000e+00     30s
   62565    3.0000000e+00   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 3.000000e+00, 62565 iterations, 32.92 seconds
Total elapsed time = 73.52s
Total elapsed time = 77.40s
Total elapsed time = 80.14s

    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 (175937 simplex iterations) in 80.69 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%