Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:21 2012 Optimize a model with 121 rows, 395 columns and 395 nonzeros Model has 240 quadratic constraints Presolve removed 0 rows and 37 columns Presolve time: 1.41s Presolved: 121 rows, 358 columns, 358 nonzeros Variable types: 240 continuous, 118 integer (117 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 57.0000000 - - - 1s 0 0 0.00000 0 21 57.00000 0.00000 100% - 1s 0 0 0.00000 0 63 57.00000 0.00000 100% - 1s 0 0 0.00000 0 58 57.00000 0.00000 100% - 1s 0 2 0.00000 0 57 57.00000 0.00000 100% - 1s * 23 17 16 4.0000000 0.15873 96.0% 41.7 1s H 40 18 3.0000000 0.23553 92.1% 29.4 1s * 40 15 12 2.0000000 0.23553 88.2% 29.4 1s Cutting planes: Explored 74 nodes (2407 simplex iterations) in 1.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%