Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:33 2012 Optimize a model with 147 rows, 462 columns and 462 nonzeros Model has 292 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.70s Presolved: 147 rows, 436 columns, 436 nonzeros Variable types: 292 continuous, 144 integer (143 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 77.0000000 - - - 1s 0 0 0.00000 0 7 77.00000 0.00000 100% - 1s 0 0 0.00000 0 23 77.00000 0.00000 100% - 1s 0 0 0.00000 0 17 77.00000 0.00000 100% - 1s 0 2 0.00000 0 14 77.00000 0.00000 100% - 1s * 28 24 22 6.0000000 0.25000 95.8% 33.4 1s * 67 38 31 5.0000000 1.00000 80.0% 21.0 1s * 102 35 15 4.0000000 1.00000 75.0% 18.5 1s Cutting planes: Explored 308 nodes (5489 simplex iterations) in 1.88 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%