Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:43 2012 Optimize a model with 179 rows, 543 columns and 543 nonzeros Model has 356 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 2.08s Presolved: 179 rows, 523 columns, 523 nonzeros Variable types: 356 continuous, 167 integer (166 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 93.0000000 - - - 2s 0 0 0.00000 0 3 93.00000 0.00000 100% - 2s 0 0 0.00000 0 21 93.00000 0.00000 100% - 2s 0 0 0.00000 0 111 93.00000 0.00000 100% - 2s 0 2 0.00000 0 102 93.00000 0.00000 100% - 2s H 27 24 8.0000000 1.15909 85.5% 46.6 2s H 94 43 7.0000000 2.33333 66.7% 27.7 2s * 98 35 16 6.0000000 2.33333 61.1% 28.4 2s Cutting planes: Explored 283 nodes (7402 simplex iterations) in 2.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%