Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:17 2012 Optimize a model with 163 rows, 121 columns and 526 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 163 rows, 120 columns, 525 nonzeros Variable types: 0 continuous, 120 integer (119 binary) Found heuristic solution: objective 40.0000000 Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 59 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 38 35.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.47368 0 39 30.00000 0.47368 98.4% - 0s H 0 0 26.0000000 0.47368 98.2% - 0s 0 0 1.07085 0 41 26.00000 1.07085 95.9% - 0s 0 0 1.47232 0 42 26.00000 1.47232 94.3% - 0s H 0 0 25.0000000 1.47232 94.1% - 0s H 0 0 23.0000000 1.47232 93.6% - 0s 0 0 1.48481 0 43 23.00000 1.48481 93.5% - 0s 0 2 1.50168 0 43 23.00000 1.50168 93.5% - 0s * 15 15 9 18.0000000 4.13468 77.0% 26.0 0s * 19 11 9 17.0000000 4.13468 75.7% 22.1 0s * 111 10 7 16.0000000 9.55058 40.3% 17.6 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 138 nodes (2680 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%