Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:57:47 2012 Optimize a model with 175 rows, 540 columns and 540 nonzeros Model has 348 quadratic constraints Presolve removed 0 rows and 38 columns Presolve time: 2.03s Presolved: 175 rows, 502 columns, 502 nonzeros Variable types: 348 continuous, 154 integer (153 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 79.0000000 - - - 2s 0 0 0.00000 0 18 79.00000 0.00000 100% - 2s 0 0 0.00000 0 28 79.00000 0.00000 100% - 2s 0 0 0.00000 0 18 79.00000 0.00000 100% - 2s 0 2 0.00000 0 17 79.00000 0.00000 100% - 2s H 16 16 11.0000000 0.00000 100% 98.9 2s H 180 95 10.0000000 2.16429 78.4% 22.9 2s * 192 73 6 9.0000000 2.74648 69.5% 23.5 2s H 273 45 8.0000000 3.52781 55.9% 19.8 2s Cutting planes: Explored 432 nodes (9426 simplex iterations) in 2.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%