Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:07 2012 Optimize a model with 202 rows, 94 columns and 404 nonzeros Presolve removed 74 rows and 21 columns Presolve time: 0.00s Presolved: 128 rows, 73 columns, 264 nonzeros Variable types: 0 continuous, 73 integer (73 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 4.366667e+01, 92 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 43.66667 0 66 39.00000 43.66667 12.0% - 0s H 0 0 41.0000000 43.66667 6.50% - 0s 0 0 43.00000 0 48 41.00000 43.00000 4.88% - 0s H 0 0 42.0000000 43.00000 2.38% - 0s 0 0 cutoff 0 42.00000 42.99996 2.38% - 0s Cutting planes: Gomory: 1 Zero half: 34 Explored 0 nodes (145 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%