Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:54:19 2012 Optimize a model with 3212 rows, 114 columns and 6424 nonzeros Presolve removed 2318 rows and 0 columns Presolve time: 0.10s Presolved: 894 rows, 114 columns, 6083 nonzeros Variable types: 0 continuous, 114 integer (114 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.590754e+01, 505 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.90754 0 110 6.00000 15.90754 165% - 0s H 0 0 7.0000000 15.90754 127% - 0s H 0 0 8.0000000 15.90754 98.8% - 0s 0 0 15.35198 0 114 8.00000 15.35198 91.9% - 0s H 0 0 9.0000000 15.35198 70.6% - 0s 0 0 15.29515 0 114 9.00000 15.29515 69.9% - 0s 0 0 15.23632 0 114 9.00000 15.23632 69.3% - 0s 0 0 15.22275 0 114 9.00000 15.22275 69.1% - 0s 0 0 15.20558 0 114 9.00000 15.20558 69.0% - 0s 0 0 15.19939 0 114 9.00000 15.19939 68.9% - 1s 0 0 15.17998 0 113 9.00000 15.17998 68.7% - 1s 0 0 15.16424 0 114 9.00000 15.16424 68.5% - 1s 0 0 15.15181 0 113 9.00000 15.15181 68.4% - 1s 0 0 15.14454 0 114 9.00000 15.14454 68.3% - 1s 0 0 15.13122 0 114 9.00000 15.13122 68.1% - 2s 0 0 15.12077 0 114 9.00000 15.12077 68.0% - 2s 0 0 15.11075 0 114 9.00000 15.11075 67.9% - 2s 0 0 15.10826 0 114 9.00000 15.10826 67.9% - 2s 0 0 15.10764 0 114 9.00000 15.10764 67.9% - 2s 0 0 15.10757 0 114 9.00000 15.10757 67.9% - 2s 0 2 15.10465 0 114 9.00000 15.10465 67.8% - 3s * 289 56 6 10.0000000 12.54742 25.5% 63.8 4s Cutting planes: Clique: 109 Explored 348 nodes (21518 simplex iterations) in 4.40 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%