Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:32 2012 Optimize a model with 151 rows, 455 columns and 455 nonzeros Model has 300 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 1.75s Presolved: 151 rows, 432 columns, 432 nonzeros Variable types: 300 continuous, 132 integer (131 binary) Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 69.0000000 - - - 1s 0 0 0.00000 0 52 69.00000 0.00000 100% - 1s 0 0 0.00000 0 108 69.00000 0.00000 100% - 1s 0 0 0.00000 0 107 69.00000 0.00000 100% - 1s 0 2 0.00000 0 105 69.00000 0.00000 100% - 1s * 16 16 11 7.0000000 2.00000 71.4% 51.5 1s * 27 16 8 6.0000000 2.65517 55.7% 40.4 1s Cutting planes: Explored 129 nodes (3942 simplex iterations) in 1.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%