Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:30 2012 Optimize a model with 132 rows, 424 columns and 424 nonzeros Model has 262 quadratic constraints Presolve removed 0 rows and 30 columns Presolve time: 1.53s Presolved: 132 rows, 394 columns, 394 nonzeros Variable types: 262 continuous, 132 integer (131 binary) Root relaxation: objective 0.000000e+00, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 74.0000000 - - - 1s 0 0 0.00000 0 30 74.00000 0.00000 100% - 1s 0 0 0.00000 0 46 74.00000 0.00000 100% - 1s 0 0 0.00000 0 41 74.00000 0.00000 100% - 1s 0 2 0.00000 0 40 74.00000 0.00000 100% - 1s * 16 16 13 6.0000000 0.29630 95.1% 43.5 1s H 72 29 6.0000000 0.29630 95.1% 12.7 1s H 82 17 5.0000000 0.55556 88.9% 12.5 1s H 122 27 5.0000000 0.82090 83.6% 10.9 1s * 167 24 14 3.0000000 1.61404 46.2% 12.1 1s Cutting planes: Gomory: 1 Explored 228 nodes (3685 simplex iterations) in 1.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%