Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:51 2012 Optimize a model with 52 rows, 148 columns and 148 nonzeros Model has 102 quadratic constraints Presolve removed 0 rows and 4 columns Presolve time: 0.60s Presolved: 52 rows, 144 columns, 144 nonzeros Variable types: 102 continuous, 42 integer (41 binary) Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 28.0000000 - - - 0s 0 0 0.00000 0 36 28.00000 0.00000 100% - 0s 0 0 0.22483 0 39 28.00000 0.22483 99.2% - 0s H 0 0 25.0000000 0.22483 99.1% - 0s H 0 0 17.0000000 0.22483 98.7% - 0s 0 2 0.26316 0 39 17.00000 0.26316 98.5% - 0s * 12 12 8 7.0000000 0.85714 87.8% 22.4 0s H 27 15 5.0000000 1.00000 80.0% 15.0 0s * 37 5 4 3.0000000 2.32000 22.7% 16.1 0s Cutting planes: Gomory: 1 Explored 45 nodes (1149 simplex iterations) in 0.63 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%