Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:47:27 2012

Optimize a model with 60783 rows, 54056 columns and 235246 nonzeros
Presolve removed 16 rows and 3250 columns
Presolve time: 1.45s
Presolved: 60767 rows, 50806 columns, 231474 nonzeros
Variable types: 0 continuous, 50806 integer (50806 binary)
Found heuristic solution: objective 232.0000000

Root relaxation: objective 2.000000e+00, 36171 iterations, 3.24 seconds
Total elapsed time = 10.04s

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

     0     0    2.00000    0  416  232.00000    2.00000  99.1%     -   11s
H    0     0                     204.0000000    2.00000  99.0%     -   11s
H    0     0                       4.0000000    2.00000  50.0%     -   11s
H    0     0                       3.0000000    2.00000  33.3%     -   11s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -   12s

Cutting planes:
  Gomory: 1
  Clique: 4
  Zero half: 28

Explored 0 nodes (123570 simplex iterations) in 12.23 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%