Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:08 2012

Optimize a model with 189 rows, 137 columns and 607 nonzeros
Presolve time: 0.00s
Presolved: 189 rows, 137 columns, 607 nonzeros
Variable types: 0 continuous, 137 integer (137 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 0.000000e+00, 79 iterations, 0.00 seconds

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

     0     0    0.00000    0   43   42.00000    0.00000   100%     -    0s
H    0     0                      37.0000000    0.00000   100%     -    0s
     0     0    0.56548    0   44   37.00000    0.56548  98.5%     -    0s
H    0     0                      35.0000000    0.56548  98.4%     -    0s
     0     0    1.20576    0   47   35.00000    1.20576  96.6%     -    0s
H    0     0                      34.0000000    1.20576  96.5%     -    0s
     0     0    1.26838    0   48   34.00000    1.26838  96.3%     -    0s
     0     0    1.26854    0   49   34.00000    1.26854  96.3%     -    0s
H    0     0                      32.0000000    1.26854  96.0%     -    0s
     0     2    1.28160    0   49   32.00000    1.28160  96.0%     -    0s
*   26    26              15      27.0000000    3.71758  86.2%  22.8    0s
*   51    36              16      23.0000000    3.82331  83.4%  22.5    0s
*   64    32               8      20.0000000    5.91262  70.4%  26.7    0s
*   94    43               8      19.0000000    5.96594  68.6%  26.7    0s

Cutting planes:
  Gomory: 3
  Zero half: 9

Explored 450 nodes (10106 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%