Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:02 2012 Optimize a model with 1 rows, 174 columns and 174 nonzeros Model has 162 quadratic objective terms Presolve removed 0 rows and 31 columns Presolve time: 0.00s Presolved: 163 rows, 305 columns, 629 nonzeros Variable types: 0 continuous, 305 integer (304 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 206 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 48 41.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.00000 0 40 38.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.00000 0 43 34.00000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.00000 0 39 29.00000 0.00000 100% - 0s 0 0 0.00000 0 25 29.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 23.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 17.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 12.00000 0.00000 100% - 0s 0 0 0.00000 0 19 12.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 2 0.00000 0 19 10.00000 0.00000 100% - 0s H 135 90 9.0000000 0.00000 100% 3.7 0s H 427 232 8.0000000 0.40000 95.0% 10.4 0s * 432 204 7 7.0000000 0.40000 94.3% 10.5 0s Cutting planes: Cover: 299 MIR: 1 Explored 734 nodes (26574 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%