Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:41:18 2012

Optimize a model with 37634 rows, 37442 columns and 149380 nonzeros
Presolve removed 25 rows and 4441 columns
Presolve time: 0.77s
Presolved: 37609 rows, 33001 columns, 144551 nonzeros
Variable types: 0 continuous, 33001 integer (33001 binary)
Found heuristic solution: objective 193.0000000

Root relaxation: objective 2.000000e+00, 22708 iterations, 1.41 seconds

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

     0     0    2.00000    0  306  193.00000    2.00000  99.0%     -    5s
H    0     0                     192.0000000    2.00000  99.0%     -    5s
H    0     0                       4.0000000    2.00000  50.0%     -    5s
H    0     0                       3.0000000    2.00000  33.3%     -    5s

Cutting planes:
  Zero half: 1

Explored 0 nodes (82034 simplex iterations) in 5.67 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%