Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:44:10 2012 Optimize a model with 148 rows, 470 columns and 470 nonzeros Model has 294 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 1.72s Presolved: 148 rows, 442 columns, 442 nonzeros Variable types: 294 continuous, 148 integer (147 binary) Root relaxation: objective 0.000000e+00, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 85.0000000 - - - 1s 0 0 0.00000 0 4 85.00000 0.00000 100% - 1s 0 0 0.00000 0 5 85.00000 0.00000 100% - 1s 0 0 0.00000 0 4 85.00000 0.00000 100% - 1s 0 2 0.00000 0 55 85.00000 0.00000 100% - 1s * 26 19 18 2.0000000 0.26531 86.7% 26.3 1s Cutting planes: Explored 63 nodes (2050 simplex iterations) in 1.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%