Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:24 2012 Optimize a model with 87 rows, 191 columns and 191 nonzeros Model has 172 quadratic constraints Presolve time: 1.00s Presolved: 87 rows, 191 columns, 191 nonzeros Variable types: 172 continuous, 19 integer (19 binary) Root relaxation: objective 0.000000e+00, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 46.0000000 - - - 1s 0 0 0.00000 0 16 46.00000 0.00000 100% - 1s 0 0 0.33516 0 19 46.00000 0.33516 99.3% - 1s 0 2 0.36047 0 19 46.00000 0.36047 99.2% - 1s * 28 27 15 38.0000000 5.45238 85.7% 25.8 1s H 48 38 36.0000000 5.51429 84.7% 25.3 1s H 92 61 35.0000000 10.57143 69.8% 24.8 1s * 686 86 9 33.0000000 26.14286 20.8% 16.6 1s Cutting planes: Gomory: 1 Explored 905 nodes (14425 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%