Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:48 2012 Optimize a model with 120 rows, 385 columns and 385 nonzeros Model has 238 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 1.39s Presolved: 120 rows, 357 columns, 357 nonzeros Variable types: 238 continuous, 119 integer (118 binary) Root relaxation: objective 0.000000e+00, 45 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 62.0000000 - - - 1s 0 0 0.00000 0 3 62.00000 0.00000 100% - 1s 0 0 0.00000 0 21 62.00000 0.00000 100% - 1s 0 0 0.00000 0 4 62.00000 0.00000 100% - 1s 0 2 0.00000 0 55 62.00000 0.00000 100% - 1s * 17 17 13 4.0000000 0.21053 94.7% 37.4 1s H 458 54 4.0000000 3.37143 15.7% 8.3 1s Cutting planes: Explored 561 nodes (4946 simplex iterations) in 1.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.999999999196e+00, best bound 3.999999999196e+00, gap 0.0%