Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:22 2012

Optimize a model with 303 rows, 324 columns and 1079 nonzeros
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 303 rows, 299 columns, 1054 nonzeros
Variable types: 0 continuous, 299 integer (298 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 198 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  121   55.00000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      30.0000000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.12580    0  123   26.00000    0.12580   100%     -    0s
H    0     0                      16.0000000    0.12580  99.2%     -    0s
H    0     0                      12.0000000    0.12580  99.0%     -    0s
     0     0    0.72276    0  126   12.00000    0.72276  94.0%     -    0s
     0     0    0.72276    0  128   12.00000    0.72276  94.0%     -    0s
     0     0    0.72276    0  128   12.00000    0.72276  94.0%     -    0s
     0     2    0.72435    0  128   12.00000    0.72435  94.0%     -    0s
*   32    19              23       4.0000000    1.00000  75.0%  30.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 6
  Mod-K: 1

Explored 102 nodes (5087 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%