Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:33 2012 Optimize a model with 217 rows, 630 columns and 630 nonzeros Model has 432 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 2.55s Presolved: 217 rows, 613 columns, 613 nonzeros Variable types: 432 continuous, 181 integer (180 binary) Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 107.0000000 - - - 2s 0 0 0.00000 0 2 107.00000 0.00000 100% - 2s 0 0 0.00000 0 2 107.00000 0.00000 100% - 2s 0 0 0.00000 0 2 107.00000 0.00000 100% - 2s 0 2 0.00000 0 89 107.00000 0.00000 100% - 2s H 27 27 38.0000000 1.27273 96.7% 47.6 2s * 38 36 28 18.0000000 1.27273 92.9% 37.8 2s * 90 41 18 16.0000000 1.92537 88.0% 21.2 2s H 113 46 14.0000000 2.04444 85.4% 21.2 2s H 213 84 13.0000000 3.16000 75.7% 18.6 2s * 355 117 19 12.0000000 5.06223 57.8% 16.2 2s 1065 69 cutoff 22 12.00000 8.07087 32.7% 33.6 5s * 1089 61 23 11.0000000 8.25000 25.0% 33.8 5s Explored 1259 nodes (43292 simplex iterations) in 5.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%