Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:38:28 2012

Optimize a model with 4364 rows, 2070 columns and 14938 nonzeros
Presolve removed 857 rows and 2 columns
Presolve time: 0.11s
Presolved: 3507 rows, 2068 columns, 12757 nonzeros
Variable types: 0 continuous, 2068 integer (2068 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 3.000000e+00, 2930 iterations, 0.22 seconds

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

     0     0    3.00000    0  568   45.00000    3.00000  93.3%     -    1s
H    0     0                       7.0000000    3.00000  57.1%     -    1s
     0     0    3.00000    0  827    7.00000    3.00000  57.1%     -    1s
H    0     0                       4.0000000    3.00000  25.0%     -    1s
H    0     0                       3.0000000    3.00000   0.0%     -    1s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (11266 simplex iterations) in 1.72 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%