Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:35 2012 Optimize a model with 122 rows, 392 columns and 392 nonzeros Model has 242 quadratic constraints Presolve removed 0 rows and 33 columns Presolve time: 1.41s Presolved: 122 rows, 359 columns, 359 nonzeros Variable types: 242 continuous, 117 integer (116 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 60.0000000 - - - 1s 0 0 0.00000 0 7 60.00000 0.00000 100% - 1s 0 0 0.00000 0 53 60.00000 0.00000 100% - 1s 0 0 0.00000 0 72 60.00000 0.00000 100% - 1s 0 2 0.00000 0 70 60.00000 0.00000 100% - 1s * 19 15 13 4.0000000 1.04545 73.9% 41.2 1s Cutting planes: Explored 273 nodes (3667 simplex iterations) in 1.54 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%