Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:04 2012 Optimize a model with 188 rows, 83 columns and 376 nonzeros Presolve removed 67 rows and 19 columns Presolve time: 0.00s Presolved: 121 rows, 64 columns, 248 nonzeros Variable types: 0 continuous, 64 integer (64 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.750000e+01, 91 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 37.50000 0 60 34.00000 37.50000 10.3% - 0s H 0 0 36.0000000 37.50000 4.17% - 0s 0 0 cutoff 0 36.00000 36.99996 2.78% - 0s Cutting planes: Gomory: 3 Zero half: 39 Explored 0 nodes (116 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%