Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:32 2012 Optimize a model with 1 rows, 170 columns and 170 nonzeros Model has 148 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 149 rows, 293 columns, 589 nonzeros Variable types: 0 continuous, 293 integer (292 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 181 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 49 41.00000 0.00000 100% - 0s 0 0 0.00000 0 32 41.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 26.00000 0.00000 100% - 0s 0 0 0.00000 0 30 26.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 2 0.00000 0 17 17.00000 0.00000 100% - 0s H 10 10 16.0000000 0.00000 100% 1.6 0s H 27 27 14.0000000 0.00000 100% 1.8 0s H 82 45 13.0000000 0.00000 100% 1.6 0s H 109 59 11.0000000 0.00000 100% 2.1 0s H 186 94 9.0000000 0.00000 100% 3.4 0s H 190 88 8.0000000 0.00000 100% 3.4 0s H 197 83 7.0000000 0.00000 100% 3.4 0s H 199 77 6.0000000 0.00000 100% 3.4 0s * 210 71 25 5.0000000 0.00000 100% 3.3 0s * 375 128 10 4.0000000 0.00000 100% 7.1 0s H 379 90 3.0000000 0.00000 100% 8.6 0s Cutting planes: Cover: 266 Explored 480 nodes (11484 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%