Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:54:35 2012

Optimize a model with 18999 rows, 23256 columns and 79494 nonzeros
Presolve removed 34 rows and 4866 columns
Presolve time: 0.39s
Presolved: 18965 rows, 18390 columns, 74380 nonzeros
Variable types: 0 continuous, 18390 integer (18390 binary)
Found heuristic solution: objective 152.0000000

Root relaxation: objective 2.000000e+00, 12598 iterations, 0.62 seconds

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

     0     0    2.00000    0  188  152.00000    2.00000  98.7%     -    2s
H    0     0                     149.0000000    2.00000  98.7%     -    2s
H    0     0                       4.0000000    2.00000  50.0%     -    2s
H    0     0                       3.0000000    2.00000  33.3%     -    2s
     0     0 infeasible    0         3.00000    2.00000  33.3%     -    2s

Cutting planes:
  Gomory: 1
  Zero half: 9

Explored 0 nodes (41574 simplex iterations) in 2.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%