Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:44 2012 Optimize a model with 147 rows, 459 columns and 459 nonzeros Model has 292 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 1.71s Presolved: 147 rows, 434 columns, 434 nonzeros Variable types: 292 continuous, 142 integer (141 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 65.0000000 - - - 1s 0 0 0.00000 0 2 65.00000 0.00000 100% - 1s 0 0 0.00000 0 2 65.00000 0.00000 100% - 1s 0 0 0.00000 0 51 65.00000 0.00000 100% - 1s 0 2 0.00000 0 6 65.00000 0.00000 100% - 1s * 16 16 13 6.0000000 0.28571 95.2% 51.6 1s H 27 17 5.0000000 0.37313 92.5% 38.9 1s H 190 56 5.0000000 2.00000 60.0% 15.9 1s * 356 23 8 4.0000000 3.24000 19.0% 14.2 1s Cutting planes: Explored 383 nodes (6148 simplex iterations) in 1.91 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%