Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:56 2012 Optimize a model with 177 rows, 538 columns and 538 nonzeros Model has 352 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 2.05s Presolved: 177 rows, 511 columns, 511 nonzeros Variable types: 352 continuous, 159 integer (158 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 86.0000000 - - - 2s 0 0 0.00000 0 41 86.00000 0.00000 100% - 2s 0 0 0.00000 0 68 86.00000 0.00000 100% - 2s 0 0 0.00000 0 125 86.00000 0.00000 100% - 2s 0 2 0.00000 0 120 86.00000 0.00000 100% - 2s * 9 9 6 4.0000000 1.39051 65.2% 101 2s Cutting planes: Explored 47 nodes (3647 simplex iterations) in 2.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%