Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:18 2012

Optimize a model with 960 rows, 992 columns and 3718 nonzeros
Presolve removed 7 rows and 157 columns
Presolve time: 0.04s
Presolved: 953 rows, 835 columns, 3501 nonzeros
Variable types: 0 continuous, 835 integer (835 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 2.000000e+00, 619 iterations, 0.01 seconds

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

     0     0    2.00000    0   46   31.00000    2.00000  93.5%     -    0s
H    0     0                      27.0000000    2.00000  92.6%     -    0s
H    0     0                       3.0000000    2.00000  33.3%     -    0s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 3

Explored 0 nodes (1808 simplex iterations) in 0.07 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%