Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:05 2012 Optimize a model with 122 rows, 303 columns and 303 nonzeros Model has 242 quadratic constraints Presolve time: 1.41s Presolved: 122 rows, 303 columns, 303 nonzeros Variable types: 242 continuous, 61 integer (61 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 53.0000000 - - - 1s 0 0 0.00000 0 48 53.00000 0.00000 100% - 1s 0 0 0.35893 0 58 53.00000 0.35893 99.3% - 1s H 0 0 51.0000000 0.35893 99.3% - 1s 0 2 0.37913 0 58 51.00000 0.37913 99.3% - 1s H 27 27 25.0000000 2.36281 90.5% 29.5 1s * 37 34 22 24.0000000 2.36281 90.2% 26.6 1s H 89 71 23.0000000 4.82727 79.0% 22.3 1s * 213 96 16 22.0000000 6.30303 71.3% 22.4 1s * 365 92 11 20.0000000 9.95652 50.2% 24.3 1s Cutting planes: Gomory: 1 Explored 665 nodes (18380 simplex iterations) in 1.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%