Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:37 2012 Optimize a model with 114 rows, 372 columns and 372 nonzeros Model has 226 quadratic constraints Presolve removed 0 rows and 32 columns Presolve time: 1.32s Presolved: 114 rows, 340 columns, 340 nonzeros Variable types: 226 continuous, 114 integer (113 binary) Root relaxation: objective 0.000000e+00, 43 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 55.0000000 - - - 1s 0 0 0.00000 0 20 55.00000 0.00000 100% - 1s 0 0 0.00000 0 58 55.00000 0.00000 100% - 1s 0 0 0.00000 0 44 55.00000 0.00000 100% - 1s 0 2 0.00000 0 44 55.00000 0.00000 100% - 1s H 27 27 7.0000000 0.45540 93.5% 17.1 1s H 39 33 5.0000000 0.45540 90.9% 14.2 1s * 39 31 28 4.0000000 0.45540 88.6% 14.4 1s * 68 27 16 3.0000000 0.87141 71.0% 15.0 1s Cutting planes: Gomory: 1 Explored 182 nodes (2815 simplex iterations) in 1.43 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%