Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:10 2012 Optimize a model with 1 rows, 164 columns and 164 nonzeros Model has 118 quadratic objective terms Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 119 rows, 250 columns, 486 nonzeros Variable types: 0 continuous, 250 integer (249 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 148 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 29 24.00000 0.00000 100% - 0s 0 0 0.00000 0 20 24.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.00000 0 19 16.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 15.00000 0.00000 100% - 0s 0 0 0.00000 0 12 15.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 0 0.00000 0 4 7.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s 0 0 0.00000 0 5 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 2 0.00000 0 5 3.00000 0.00000 100% - 0s * 183 10 52 2.0000000 0.00000 100% 1.6 0s * 194 6 10 1.0000000 0.00000 100% 1.7 0s Cutting planes: Cover: 17 Explored 195 nodes (712 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%