Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:09:36 2012 Optimize a model with 216 rows, 636 columns and 636 nonzeros Model has 430 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 2.51s Presolved: 216 rows, 611 columns, 611 nonzeros Variable types: 430 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 0 116.0000000 - - - 2s 0 0 0.00000 0 14 116.00000 0.00000 100% - 2s 0 0 0.00000 0 112 116.00000 0.00000 100% - 2s 0 0 0.00000 0 111 116.00000 0.00000 100% - 2s 0 2 0.00000 0 108 116.00000 0.00000 100% - 2s * 38 34 26 15.0000000 1.45455 90.3% 42.1 2s * 94 63 25 13.0000000 2.19250 83.1% 31.9 2s * 661 259 24 11.0000000 6.16000 44.0% 27.0 4s 1143 118 9.00000 20 311 11.00000 8.35248 24.1% 30.9 5s Explored 1406 nodes (43873 simplex iterations) in 5.32 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%