Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:11:37 2012 Optimize a model with 245 rows, 696 columns and 696 nonzeros Model has 488 quadratic constraints Presolve removed 0 rows and 16 columns Presolve time: 2.86s Presolved: 245 rows, 680 columns, 680 nonzeros Variable types: 488 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 0 126.0000000 - - - 2s 0 0 0.00000 0 6 126.00000 0.00000 100% - 2s 0 0 0.00000 0 91 126.00000 0.00000 100% - 2s 0 0 0.00000 0 131 126.00000 0.00000 100% - 2s 0 2 0.00000 0 120 126.00000 0.00000 100% - 3s * 35 33 25 21.0000000 3.52083 83.2% 41.8 3s * 139 96 24 19.0000000 4.15094 78.2% 27.9 3s * 144 88 28 18.0000000 4.15094 76.9% 27.2 3s * 524 175 18 17.0000000 8.47147 50.2% 21.1 3s 830 232 13.71341 23 474 17.00000 9.48052 44.2% 31.6 5s * 2214 288 43 16.0000000 11.43056 28.6% 44.8 9s 2451 273 13.50000 22 391 16.00000 12.00000 25.0% 46.3 10s Explored 3306 nodes (148717 simplex iterations) in 14.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%