Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:04 2012 Optimize a model with 192 rows, 83 columns and 384 nonzeros Presolve removed 86 rows and 23 columns Presolve time: 0.00s Presolved: 106 rows, 60 columns, 219 nonzeros Variable types: 0 continuous, 60 integer (60 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 3.850000e+01, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38.50000 0 47 35.00000 38.50000 10.0% - 0s H 0 0 36.0000000 38.50000 6.94% - 0s H 0 0 37.0000000 38.50000 4.05% - 0s 0 0 38.00000 0 50 37.00000 38.00000 2.70% - 0s 0 0 cutoff 0 37.00000 37.99996 2.70% - 0s Cutting planes: Gomory: 1 Zero half: 18 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 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%