Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:12:11 2012 Optimize a model with 231 rows, 668 columns and 668 nonzeros Model has 460 quadratic constraints Presolve removed 0 rows and 15 columns Presolve time: 2.68s Presolved: 231 rows, 653 columns, 653 nonzeros Variable types: 460 continuous, 193 integer (192 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 0 119.0000000 - - - 2s 0 0 0.00000 0 81 119.00000 0.00000 100% - 2s 0 0 0.00000 0 103 119.00000 0.00000 100% - 2s 0 0 0.00000 0 91 119.00000 0.00000 100% - 2s 0 2 0.00000 0 149 119.00000 0.00000 100% - 2s * 33 33 19 14.0000000 1.95082 86.1% 50.5 2s * 36 34 22 13.0000000 1.95082 85.0% 46.7 2s * 141 44 14 10.0000000 6.00000 40.0% 31.4 3s Cutting planes: Explored 249 nodes (8834 simplex iterations) in 3.11 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%