Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:11 2012

Optimize a model with 296 rows, 104 columns and 592 nonzeros
Presolve removed 90 rows and 11 columns
Presolve time: 0.00s
Presolved: 206 rows, 93 columns, 442 nonzeros
Variable types: 0 continuous, 93 integer (93 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 4.530000e+01, 135 iterations, 0.00 seconds

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

     0     0   45.30000    0   89   40.00000   45.30000  13.3%     -    0s
H    0     0                      41.0000000   45.30000  10.5%     -    0s
     0     0   44.00000    0   87   41.00000   44.00000  7.32%     -    0s
     0     0   44.00000    0   87   41.00000   44.00000  7.32%     -    0s
     0     0   44.00000    0   59   41.00000   44.00000  7.32%     -    0s
H    0     0                      42.0000000   44.00000  4.76%     -    0s
     0     2   44.00000    0   59   42.00000   44.00000  4.76%     -    0s

Cutting planes:
  Gomory: 3
  Zero half: 9

Explored 20 nodes (721 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%