Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:34 2012 Optimize a model with 112 rows, 289 columns and 289 nonzeros Model has 222 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.29s Presolved: 112 rows, 288 columns, 288 nonzeros Variable types: 222 continuous, 66 integer (65 binary) Root relaxation: objective 0.000000e+00, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 64.0000000 - - - 1s 0 0 0.00000 0 40 64.00000 0.00000 100% - 1s 0 0 0.10591 0 65 64.00000 0.10591 100% - 1s 0 2 0.14848 0 65 64.00000 0.14848 100% - 1s * 41 36 28 19.0000000 1.93750 89.8% 23.8 1s * 124 68 20 17.0000000 5.13154 69.8% 20.5 1s * 298 73 13 15.0000000 9.00000 40.0% 20.8 1s Cutting planes: Gomory: 2 Explored 548 nodes (10995 simplex iterations) in 1.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%