Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:05 2012 Optimize a model with 202 rows, 85 columns and 404 nonzeros Presolve removed 42 rows and 4 columns Presolve time: 0.00s Presolved: 160 rows, 81 columns, 337 nonzeros Variable types: 0 continuous, 81 integer (81 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 3.900000e+01, 102 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39.00000 0 70 33.00000 39.00000 18.2% - 0s H 0 0 34.0000000 39.00000 14.7% - 0s 0 0 38.25000 0 74 34.00000 38.25000 12.5% - 0s H 0 0 36.0000000 38.25000 6.25% - 0s 0 0 37.53333 0 79 36.00000 37.53333 4.26% - 0s 0 0 cutoff 0 36.00000 36.99996 2.78% - 0s Cutting planes: Zero half: 35 Explored 0 nodes (252 simplex iterations) in 0.02 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%