Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:04 2012 Optimize a model with 189 rows, 155 columns and 625 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 189 rows, 153 columns, 623 nonzeros Variable types: 0 continuous, 153 integer (152 binary) Found heuristic solution: objective 44.0000000 Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 99 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 58 41.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.44641 0 60 26.00000 0.44641 98.3% - 0s H 0 0 24.0000000 0.44641 98.1% - 0s 0 0 1.12579 0 65 24.00000 1.12579 95.3% - 0s H 0 0 21.0000000 1.12579 94.6% - 0s 0 0 1.14404 0 66 21.00000 1.14404 94.6% - 0s 0 0 1.14404 0 66 21.00000 1.14404 94.6% - 0s 0 2 1.21594 0 66 21.00000 1.21594 94.2% - 0s * 20 20 15 18.0000000 2.52936 85.9% 26.5 0s * 40 27 13 16.0000000 2.61063 83.7% 24.0 0s * 61 32 16 14.0000000 4.72311 66.3% 21.4 0s * 121 30 9 13.0000000 6.78945 47.8% 20.3 0s Cutting planes: Gomory: 4 Zero half: 3 Explored 194 nodes (3998 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%