Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:16 2012 Optimize a model with 109 rows, 284 columns and 284 nonzeros Model has 216 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 1.26s Presolved: 109 rows, 281 columns, 281 nonzeros Variable types: 216 continuous, 65 integer (64 binary) Root relaxation: objective 0.000000e+00, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 52.0000000 - - - 1s 0 0 0.00000 0 49 52.00000 0.00000 100% - 1s 0 0 0.20209 0 62 52.00000 0.20209 100% - 1s 0 2 0.27429 0 62 52.00000 0.27429 99.5% - 1s H 42 39 22.0000000 1.58647 92.8% 22.5 1s * 64 36 15 18.0000000 2.23995 87.6% 25.7 1s * 791 215 40 17.0000000 8.51535 49.9% 26.8 2s Explored 1480 nodes (32480 simplex iterations) in 2.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%