Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:05 2012 Optimize a model with 187 rows, 157 columns and 622 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 187 rows, 154 columns, 619 nonzeros Variable types: 0 continuous, 154 integer (153 binary) Found heuristic solution: objective 41.0000000 Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 80 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 60 40.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.54444 0 61 31.00000 0.54444 98.2% - 0s H 0 0 27.0000000 0.54444 98.0% - 0s H 0 0 26.0000000 0.54444 97.9% - 0s 0 0 1.08912 0 64 26.00000 1.08912 95.8% - 0s H 0 0 25.0000000 1.08912 95.6% - 0s 0 0 1.09296 0 65 25.00000 1.09296 95.6% - 0s 0 0 1.09296 0 65 25.00000 1.09296 95.6% - 0s H 0 0 24.0000000 1.09296 95.4% - 0s 0 2 1.09492 0 65 24.00000 1.09492 95.4% - 0s * 15 15 10 15.0000000 3.66487 75.6% 30.9 0s * 18 13 10 14.0000000 3.66487 73.8% 27.7 0s * 76 29 17 13.0000000 6.02078 53.7% 17.4 0s * 112 30 8 12.0000000 7.36077 38.7% 16.5 0s * 118 18 9 11.0000000 7.36077 33.1% 15.9 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 147 nodes (2535 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%