Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:04 2012 Optimize a model with 153 rows, 476 columns and 476 nonzeros Model has 304 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 1.77s Presolved: 153 rows, 452 columns, 452 nonzeros Variable types: 304 continuous, 148 integer (147 binary) Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 69.0000000 - - - 1s 0 0 0.00000 0 83 69.00000 0.00000 100% - 1s 0 0 0.00000 0 96 69.00000 0.00000 100% - 1s 0 0 0.00000 0 89 69.00000 0.00000 100% - 1s 0 2 0.00000 0 89 69.00000 0.00000 100% - 1s * 17 13 13 5.0000000 1.38235 72.4% 49.5 1s H 118 40 5.0000000 3.17391 36.5% 15.0 1s * 118 9 4 4.0000000 3.17391 20.7% 15.0 1s H 122 7 4.0000000 3.17391 20.7% 14.7 1s Cutting planes: Gomory: 1 Explored 132 nodes (3891 simplex iterations) in 1.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.999999998897e+00, best bound 3.999999998897e+00, gap 0.0%