Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:07 2012 Optimize a model with 66 rows, 148 columns and 148 nonzeros Model has 130 quadratic constraints Presolve time: 0.76s Presolved: 66 rows, 148 columns, 148 nonzeros Variable types: 130 continuous, 18 integer (18 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 37.0000000 - - - 0s 0 0 0.00000 0 15 37.00000 0.00000 100% - 0s 0 0 0.39496 0 17 37.00000 0.39496 98.9% - 0s 0 2 0.42857 0 17 37.00000 0.42857 98.8% - 0s * 25 25 15 31.0000000 3.51020 88.7% 18.5 0s * 26 24 15 30.0000000 3.51020 88.3% 18.0 0s * 29 21 13 29.0000000 3.51020 87.9% 16.4 0s * 42 27 10 25.0000000 3.57143 85.7% 17.2 0s * 60 32 9 23.0000000 5.42857 76.4% 17.3 0s * 64 30 8 22.0000000 5.42857 75.3% 17.1 0s Cutting planes: Gomory: 1 Explored 364 nodes (5777 simplex iterations) in 0.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%