Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:07:55 2012 Optimize a model with 214 rows, 630 columns and 630 nonzeros Model has 426 quadratic constraints Presolve removed 0 rows and 29 columns Presolve time: 2.49s Presolved: 214 rows, 601 columns, 601 nonzeros Variable types: 426 continuous, 175 integer (174 binary) Root relaxation: objective 0.000000e+00, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 2s 0 0 0.00000 0 17 92.00000 0.00000 100% - 2s 0 0 0.00000 0 18 92.00000 0.00000 100% - 2s 0 0 0.00000 0 118 92.00000 0.00000 100% - 2s 0 2 0.00000 0 117 92.00000 0.00000 100% - 2s H 46 46 19.0000000 2.00000 89.5% 29.8 2s H 103 67 18.0000000 2.51181 86.0% 19.2 2s H 161 79 16.0000000 3.78947 76.3% 17.0 2s * 161 63 15 15.0000000 3.78947 74.7% 17.0 2s H 184 74 14.0000000 4.08271 70.8% 16.8 2s * 416 110 25 13.0000000 5.72727 55.9% 13.9 2s * 1147 74 34 12.0000000 9.07194 24.4% 28.9 4s 1224 45 11.60526 20 343 12.00000 10.45324 12.9% 30.3 5s Explored 1306 nodes (40522 simplex iterations) in 5.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%