Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:50:42 2012

Optimize a model with 59768 rows, 52670 columns and 230830 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 1.46s
Presolved: 59995 rows, 52668 columns, 282749 nonzeros
Variable types: 0 continuous, 52668 integer (52668 binary)
Found heuristic solution: objective 229.0000000

Root relaxation: objective 2.000000e+00, 32815 iterations, 3.19 seconds
Total elapsed time = 8.98s

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

     0     0    2.00000    0  370  229.00000    2.00000  99.1%     -   10s
H    0     0                     218.0000000    2.00000  99.1%     -   10s
H    0     0                       4.0000000    2.00000  50.0%     -   10s
     0     0    2.66667    0 4182    4.00000    2.66667  33.3%     -   64s
     0     0    2.66667    0 17055    4.00000    2.66667  33.3%     -   80s
     0     0    2.66667    0 2827    4.00000    2.66667  33.3%     -  197s
     0     0    2.66667    0  266    4.00000    2.66667  33.3%     -  295s
H    0     0                       3.0000000    2.66667  11.1%     -  295s

Cutting planes:
  Clique: 4
  Zero half: 4

Explored 0 nodes (424078 simplex iterations) in 295.34 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%