Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:31 2012 Optimize a model with 1 rows, 170 columns and 170 nonzeros Model has 154 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 155 rows, 301 columns, 609 nonzeros Variable types: 0 continuous, 301 integer (300 binary) Found heuristic solution: objective 49.0000000 Root relaxation: objective 0.000000e+00, 192 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 33 49.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.00000 0 44 27.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 23.00000 0.00000 100% - 0s 0 0 0.00000 0 28 23.00000 0.00000 100% - 0s 0 0 0.00000 0 24 23.00000 0.00000 100% - 0s 0 0 0.00000 0 26 23.00000 0.00000 100% - 0s 0 0 0.00000 0 24 23.00000 0.00000 100% - 0s H 0 0 14.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 14.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 12.00000 0.00000 100% - 0s 0 0 0.00000 0 19 12.00000 0.00000 100% - 0s 0 2 0.00000 0 19 12.00000 0.00000 100% - 0s H 27 27 11.0000000 0.00000 100% 1.3 0s H 54 46 10.0000000 0.00000 100% 2.5 0s H 199 136 9.0000000 0.00000 100% 5.1 0s H 201 113 7.0000000 0.00000 100% 5.1 0s H 211 105 6.0000000 0.00000 100% 4.9 0s H 297 141 5.0000000 0.00000 100% 7.0 0s Cutting planes: Cover: 291 MIR: 2 Explored 641 nodes (21886 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%