Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:56 2012 Optimize a model with 1 rows, 166 columns and 166 nonzeros Model has 145 quadratic objective terms Presolve removed 0 rows and 29 columns Presolve time: 0.00s Presolved: 146 rows, 282 columns, 572 nonzeros Variable types: 0 continuous, 282 integer (281 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 0.000000e+00, 176 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 43 36.00000 0.00000 100% - 0s 0 0 0.00000 0 29 36.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 35 27.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 19.00000 0.00000 100% - 0s 0 0 0.00000 0 19 19.00000 0.00000 100% - 0s 0 0 0.00000 0 23 19.00000 0.00000 100% - 0s 0 0 0.00000 0 23 19.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 2 0.00000 0 21 11.00000 0.00000 100% - 0s H 54 38 10.0000000 0.00000 100% 2.3 0s H 161 68 5.0000000 0.00000 100% 2.3 0s H 246 65 4.0000000 0.00000 100% 4.6 0s H 404 58 3.0000000 1.00000 66.7% 15.8 0s Cutting planes: Cover: 264 MIR: 4 Zero half: 2 Explored 462 nodes (10187 simplex iterations) in 0.21 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%