Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:32:08 2012

Optimize a model with 62600 rows, 53592 columns and 240238 nonzeros
Presolve removed 23 rows and 4853 columns
Presolve time: 1.41s
Presolved: 62577 rows, 48739 columns, 234845 nonzeros
Variable types: 0 continuous, 48739 integer (48739 binary)
Found heuristic solution: objective 231.0000000

Root relaxation: objective 2.000000e+00, 35947 iterations, 3.56 seconds

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

     0     0    2.00000    0  408  231.00000    2.00000  99.1%     -   11s
H    0     0                     200.0000000    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

Cutting planes:
  Zero half: 2

Explored 0 nodes (119124 simplex iterations) in 11.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%