Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:13:10 2012 Optimize a model with 236 rows, 679 columns and 679 nonzeros Model has 470 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 2.74s Presolved: 236 rows, 662 columns, 662 nonzeros Variable types: 470 continuous, 192 integer (191 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 0 118.0000000 - - - 2s 0 0 0.00000 0 77 118.00000 0.00000 100% - 2s 0 0 0.00000 0 108 118.00000 0.00000 100% - 2s 0 0 0.00000 0 83 118.00000 0.00000 100% - 2s 0 2 0.00000 0 151 118.00000 0.00000 100% - 2s * 34 34 21 18.0000000 2.11321 88.3% 53.1 3s * 50 41 31 17.0000000 2.11321 87.6% 43.4 3s H 147 97 16.0000000 3.80851 76.2% 27.1 3s * 441 146 10 15.0000000 6.81305 54.6% 23.7 3s 965 151 10.77314 17 563 15.00000 10.77314 28.2% 28.4 5s 2929 230 14.75652 24 465 15.00000 11.87379 20.8% 44.1 10s Explored 3974 nodes (163428 simplex iterations) in 11.51 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%