Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:12 2012 Optimize a model with 152 rows, 480 columns and 480 nonzeros Model has 302 quadratic constraints Presolve removed 0 rows and 31 columns Presolve time: 1.76s Presolved: 152 rows, 449 columns, 449 nonzeros Variable types: 302 continuous, 147 integer (146 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 76.0000000 - - - 1s 0 0 0.00000 0 11 76.00000 0.00000 100% - 1s 0 0 0.00000 0 2 76.00000 0.00000 100% - 1s 0 0 0.00000 0 11 76.00000 0.00000 100% - 1s 0 2 0.00000 0 11 76.00000 0.00000 100% - 1s * 10 8 6 4.0000000 0.41096 89.7% 102 1s Cutting planes: Explored 109 nodes (3706 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%