Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:10:09 2012

Optimize a model with 2554 rows, 1260 columns and 8748 nonzeros
Presolve removed 912 rows and 2 columns
Presolve time: 0.10s
Presolved: 1642 rows, 1258 columns, 6414 nonzeros
Variable types: 0 continuous, 1258 integer (1258 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 3.000000e+00, 1573 iterations, 0.08 seconds

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

     0     0    3.00000    0  160   35.00000    3.00000  91.4%     -    0s
H    0     0                      23.0000000    3.00000  87.0%     -    0s
H    0     0                       7.0000000    3.00000  57.1%     -    0s
H    0     0                       6.0000000    3.00000  50.0%     -    0s
     0     0    3.00000    0  199    6.00000    3.00000  50.0%     -    0s
H    0     0                       4.0000000    3.00000  25.0%     -    0s
H    0     0                       3.0000000    3.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (4813 simplex iterations) in 0.51 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%