Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:52 2012

Optimize a model with 331 rows, 347 columns and 1172 nonzeros
Presolve removed 0 rows and 27 columns
Presolve time: 0.00s
Presolved: 331 rows, 320 columns, 1145 nonzeros
Variable types: 0 continuous, 320 integer (319 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 0.000000e+00, 230 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  134   58.00000    0.00000   100%     -    0s
H    0     0                      44.0000000    0.00000   100%     -    0s
H    0     0                      39.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
     0     0    0.21618    0  136   33.00000    0.21618  99.3%     -    0s
H    0     0                      29.0000000    0.21618  99.3%     -    0s
     0     0    0.83751    0  138   29.00000    0.83751  97.1%     -    0s
H    0     0                      21.0000000    0.83751  96.0%     -    0s
     0     0    0.83751    0  138   21.00000    0.83751  96.0%     -    0s
H    0     0                       6.0000000    0.83751  86.0%     -    0s
     0     2    0.83857    0  138    6.00000    0.83857  86.0%     -    0s
*   31    29              19       5.0000000    1.03928  79.2%  27.2    0s
*   91    12               8       4.0000000    1.75716  56.1%  25.1    0s

Cutting planes:
  Gomory: 3
  Zero half: 1

Explored 110 nodes (3300 simplex iterations) in 0.15 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%