Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:42:29 2012 Optimize a model with 1 rows, 175 columns and 175 nonzeros Model has 155 quadratic objective terms Presolve removed 0 rows and 35 columns Presolve time: 0.00s Presolved: 156 rows, 295 columns, 605 nonzeros Variable types: 0 continuous, 295 integer (294 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 179 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 46 43.00000 0.00000 100% - 0s 0 0 0.00000 0 41 43.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s 0 0 0.00000 0 33 35.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.00000 0 43 24.00000 0.00000 100% - 0s 0 0 0.00000 0 23 24.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 20.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 21 15.00000 0.00000 100% - 0s 0 0 0.00000 0 21 15.00000 0.00000 100% - 0s H 0 0 12.0000000 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 27 27 10.0000000 0.00000 100% 2.3 0s H 54 25 9.0000000 0.00000 100% 1.9 0s H 81 48 8.0000000 0.00000 100% 2.0 0s H 270 139 7.0000000 0.00000 100% 4.5 0s * 508 160 20 6.0000000 1.00000 83.3% 12.9 0s * 524 102 5 5.0000000 1.00000 80.0% 15.6 0s Cutting planes: Cover: 281 MIR: 5 Explored 630 nodes (14097 simplex iterations) in 0.30 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%