Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:58 2012

Optimize a model with 319 rows, 333 columns and 1128 nonzeros
Presolve removed 0 rows and 26 columns
Presolve time: 0.00s
Presolved: 319 rows, 307 columns, 1102 nonzeros
Variable types: 0 continuous, 307 integer (306 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 0.000000e+00, 195 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  124   58.00000    0.00000   100%     -    0s
H    0     0                      40.0000000    0.00000   100%     -    0s
H    0     0                      38.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
     0     0    0.19844    0  126   33.00000    0.19844  99.4%     -    0s
H    0     0                      27.0000000    0.19844  99.3%     -    0s
     0     0    0.74630    0  132   27.00000    0.74630  97.2%     -    0s
H    0     0                      17.0000000    0.74630  95.6%     -    0s
     0     0    0.74650    0  136   17.00000    0.74650  95.6%     -    0s
     0     0    0.74650    0  136   17.00000    0.74650  95.6%     -    0s
     0     2    0.75663    0  133   17.00000    0.75663  95.5%     -    0s
*   33    11              20       4.0000000    1.42341  64.4%  41.8    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 51 nodes (2734 simplex iterations) in 0.12 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%