Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:26:31 2012

Optimize a model with 55805 rows, 45582 columns and 211933 nonzeros
Presolve removed 854 rows and 2 columns
Presolve time: 4.09s
Presolved: 55164 rows, 45580 columns, 254656 nonzeros
Variable types: 0 continuous, 45580 integer (45580 binary)
Found heuristic solution: objective 213.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   33799    3.0000751e+00   7.778788e+01   0.000000e+00      5s
   39720    3.0000824e+00   2.479437e+01   0.000000e+00     10s
   43693    3.0000867e+00   3.598770e+02   0.000000e+00     15s
   47118    3.0000892e+00   3.978077e+01   0.000000e+00     20s
   50817    3.0000923e+00   4.489170e+01   0.000000e+00     25s
   54379    3.0000960e+00   2.405348e+00   0.000000e+00     30s
   56584    3.0000000e+00   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 3.000000e+00, 56584 iterations, 32.73 seconds
Total elapsed time = 68.45s
Total elapsed time = 71.97s

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

     0     0    3.00000    0   54  213.00000    3.00000  98.6%     -   74s
H    0     0                       3.0000000    3.00000   0.0%     -   74s

Explored 0 nodes (139373 simplex iterations) in 74.75 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%