Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:37:16 2012 Optimize a model with 260 rows, 748 columns and 748 nonzeros Model has 518 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 3.03s Presolved: 260 rows, 724 columns, 724 nonzeros Variable types: 518 continuous, 206 integer (205 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 116.0000000 - - - 3s 0 0 0.00000 0 22 116.00000 0.00000 100% - 3s 0 0 0.00000 0 22 116.00000 0.00000 100% - 3s 0 0 0.00000 0 22 116.00000 0.00000 100% - 3s 0 2 0.00000 0 22 116.00000 0.00000 100% - 3s * 30 26 22 17.0000000 0.66264 96.1% 63.6 3s 617 195 9.87568 18 427 17.00000 7.47650 56.0% 29.4 5s * 1924 219 41 15.0000000 10.75887 28.3% 32.8 8s Explored 2382 nodes (81014 simplex iterations) in 9.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%