Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:35 2012

Optimize a model with 1205 rows, 342 columns and 3868 nonzeros
Presolve removed 686 rows and 2 columns
Presolve time: 0.02s
Presolved: 519 rows, 340 columns, 2424 nonzeros
Variable types: 0 continuous, 340 integer (340 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 4.000000e+00, 841 iterations, 0.02 seconds

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

     0     0    4.00000    0   34   18.00000    4.00000  77.8%     -    0s
H    0     0                      17.0000000    4.00000  76.5%     -    0s
H    0     0                       8.0000000    4.00000  50.0%     -    0s
H    0     0                       6.0000000    4.00000  33.3%     -    0s
     0     0    4.00000    0  162    6.00000    4.00000  33.3%     -    0s
     0     0    4.00000    0   48    6.00000    4.00000  33.3%     -    0s
H    0     0                       5.0000000    4.00000  20.0%     -    0s
     0     0 infeasible    0         5.00000    4.00001  20.0%     -    0s

Cutting planes:
  Clique: 2
  Zero half: 31

Explored 0 nodes (3781 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%