Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:37:19 2012 Optimize a model with 1 rows, 169 columns and 169 nonzeros Model has 149 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 150 rows, 293 columns, 591 nonzeros Variable types: 0 continuous, 293 integer (292 binary) Found heuristic solution: objective 45.0000000 Root relaxation: objective 0.000000e+00, 183 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 51 45.00000 0.00000 100% - 0s 0 0 0.00000 0 41 45.00000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.00000 0 25 39.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 27 19.00000 0.00000 100% - 0s 0 0 0.00000 0 16 19.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 2 0.00000 0 16 16.00000 0.00000 100% - 0s H 52 33 9.0000000 0.00000 100% 2.7 0s H 108 63 6.0000000 0.00000 100% 2.4 0s H 122 55 5.0000000 0.00000 100% 2.5 0s H 127 49 4.0000000 0.00000 100% 2.4 0s H 517 76 3.0000000 1.00000 66.7% 12.3 0s Cutting planes: Cover: 273 MIR: 2 Explored 613 nodes (12267 simplex iterations) in 0.24 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%