Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:35 2012 Optimize a model with 240 rows, 693 columns and 693 nonzeros Model has 478 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 2.79s Presolved: 240 rows, 674 columns, 674 nonzeros Variable types: 478 continuous, 196 integer (195 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 125.0000000 - - - 2s 0 0 0.00000 0 106 125.00000 0.00000 100% - 2s 0 0 0.00000 0 159 125.00000 0.00000 100% - 2s 0 0 0.00000 0 141 125.00000 0.00000 100% - 2s 0 2 0.00000 0 141 125.00000 0.00000 100% - 2s * 37 37 20 18.0000000 3.33333 81.5% 37.9 2s H 154 57 15.0000000 5.52542 63.2% 25.7 3s * 161 49 14 14.0000000 5.52542 60.5% 27.3 3s Cutting planes: Gomory: 2 Explored 496 nodes (15786 simplex iterations) in 3.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%