Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:21:54 2012 Optimize a model with 232 rows, 676 columns and 676 nonzeros Model has 462 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 2.69s Presolved: 232 rows, 648 columns, 648 nonzeros Variable types: 462 continuous, 186 integer (185 binary) Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 115.0000000 - - - 2s 0 0 0.00000 0 24 115.00000 0.00000 100% - 2s 0 0 0.00000 0 26 115.00000 0.00000 100% - 2s 0 0 0.00000 0 24 115.00000 0.00000 100% - 2s 0 2 0.00000 0 131 115.00000 0.00000 100% - 2s * 42 38 26 17.0000000 2.22403 86.9% 55.1 2s * 257 125 19 15.0000000 3.21467 78.6% 25.7 3s 815 276 14.20000 29 389 15.00000 7.06897 52.9% 34.8 5s * 1332 75 41 14.0000000 11.51042 17.8% 31.2 5s Explored 1382 nodes (44535 simplex iterations) in 5.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%