Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:08 2012 Optimize a model with 1 rows, 164 columns and 164 nonzeros Model has 154 quadratic objective terms Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 155 rows, 295 columns, 603 nonzeros Variable types: 0 continuous, 295 integer (294 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 196 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 47 40.00000 0.00000 100% - 0s 0 0 0.00000 0 37 40.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s 0 0 0.00000 0 34 35.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.00000 0 30 21.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 19.00000 0.00000 100% - 0s 0 0 0.00000 0 26 19.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 2 0.00000 0 24 17.00000 0.00000 100% - 0s H 54 47 15.0000000 0.00000 100% 1.9 0s H 162 108 14.0000000 0.00000 100% 4.7 0s H 298 171 11.0000000 0.00000 100% 6.3 0s H 325 162 9.0000000 0.00000 100% 7.0 0s H 354 148 8.0000000 0.00000 100% 7.1 0s * 363 115 16 6.0000000 0.00000 100% 7.5 0s * 505 43 9 5.0000000 3.00000 40.0% 21.0 0s Cutting planes: Cover: 288 MIR: 5 Explored 549 nodes (13015 simplex iterations) in 0.26 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%