Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:04:17 2012 Optimize a model with 218 rows, 634 columns and 634 nonzeros Model has 434 quadratic constraints Presolve removed 0 rows and 16 columns Presolve time: 2.53s Presolved: 218 rows, 618 columns, 618 nonzeros Variable types: 434 continuous, 184 integer (183 binary) Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 120.0000000 - - - 2s 0 0 0.00000 0 81 120.00000 0.00000 100% - 2s 0 0 0.00000 0 107 120.00000 0.00000 100% - 2s 0 0 0.00000 0 105 120.00000 0.00000 100% - 2s 0 2 0.00000 0 105 120.00000 0.00000 100% - 2s H 27 25 12.0000000 1.86734 84.4% 35.1 2s * 95 61 17 11.0000000 2.49057 77.4% 20.0 2s H 190 110 11.0000000 3.70732 66.3% 16.9 2s * 664 228 30 10.0000000 6.00000 40.0% 25.4 3s Explored 1054 nodes (33509 simplex iterations) in 4.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%