Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:14 2012 Optimize a model with 112 rows, 280 columns and 280 nonzeros Model has 222 quadratic constraints Presolve time: 1.29s Presolved: 112 rows, 280 columns, 280 nonzeros Variable types: 222 continuous, 58 integer (58 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 55.0000000 - - - 1s 0 0 0.00000 0 46 55.00000 0.00000 100% - 1s 0 0 0.23278 0 54 55.00000 0.23278 100% - 1s 0 2 0.24022 0 54 55.00000 0.24022 100% - 1s * 25 25 17 18.0000000 3.86772 78.5% 35.2 1s * 794 114 11 17.0000000 13.16667 22.5% 18.8 1s Cutting planes: Gomory: 1 Explored 1073 nodes (20483 simplex iterations) in 1.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%