Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:23:40 2012 Optimize a model with 1 rows, 139 columns and 139 nonzeros Model has 110 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 111 rows, 224 columns, 444 nonzeros Variable types: 0 continuous, 224 integer (223 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 138 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 28 31.00000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.00000 0 20 25.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s 0 0 0.00000 0 29 19.00000 0.00000 100% - 0s H 0 0 12.0000000 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 6.0000000 0.00000 100% - 0s 0 0 0.00000 0 12 6.00000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 0 0.00000 0 8 6.00000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 0 0.00000 0 13 6.00000 0.00000 100% - 0s 0 2 0.00000 0 13 6.00000 0.00000 100% - 0s H 27 22 5.0000000 0.00000 100% 2.7 0s * 71 29 19 4.0000000 0.00000 100% 2.4 0s * 402 102 6 3.0000000 0.00000 100% 9.1 0s Cutting planes: Gomory: 1 Cover: 197 MIR: 1 Explored 524 nodes (9366 simplex iterations) in 0.17 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%