Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:18:41 2012 Optimize a model with 4654 rows, 137 columns and 9308 nonzeros Presolve removed 3291 rows and 0 columns Presolve time: 0.17s Presolved: 1363 rows, 137 columns, 9450 nonzeros Variable types: 0 continuous, 137 integer (137 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.782646e+01, 643 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.82646 0 135 7.00000 17.82646 155% - 0s H 0 0 8.0000000 17.82646 123% - 0s 0 0 17.48584 0 137 8.00000 17.48584 119% - 0s 0 0 17.37999 0 137 8.00000 17.37999 117% - 0s 0 0 17.30112 0 137 8.00000 17.30112 116% - 0s H 0 0 9.0000000 17.30112 92.2% - 0s 0 0 17.28278 0 137 9.00000 17.28278 92.0% - 1s 0 0 17.27135 0 137 9.00000 17.27135 91.9% - 1s 0 0 17.23677 0 137 9.00000 17.23677 91.5% - 1s 0 0 17.21753 0 137 9.00000 17.21753 91.3% - 1s 0 0 17.20189 0 137 9.00000 17.20189 91.1% - 1s H 0 0 10.0000000 17.20189 72.0% - 1s 0 0 17.19679 0 137 10.00000 17.19679 72.0% - 2s 0 0 17.17828 0 137 10.00000 17.17828 71.8% - 2s 0 0 17.13361 0 137 10.00000 17.13361 71.3% - 2s 0 0 17.12446 0 137 10.00000 17.12446 71.2% - 2s 0 0 17.12404 0 137 10.00000 17.12404 71.2% - 2s 0 0 17.12398 0 137 10.00000 17.12398 71.2% - 2s 0 2 17.12181 0 137 10.00000 17.12181 71.2% - 3s 204 129 11.23077 11 32 10.00000 16.23144 62.3% 82.3 5s Cutting planes: Clique: 137 Explored 720 nodes (53227 simplex iterations) in 8.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%