Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:14 2012 Optimize a model with 421 rows, 400 columns and 1450 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 421 rows, 379 columns, 1429 nonzeros Variable types: 0 continuous, 379 integer (378 binary) Found heuristic solution: objective 79.0000000 Root relaxation: objective 0.000000e+00, 239 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 0 163 79.00000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s H 0 0 56.0000000 0.00000 100% - 0s 0 0 0.41718 0 164 56.00000 0.41718 99.3% - 0s H 0 0 49.0000000 0.41718 99.1% - 0s 0 0 1.00000 0 165 49.00000 1.00000 98.0% - 0s H 0 0 35.0000000 1.00000 97.1% - 0s 0 0 1.00000 0 165 35.00000 1.00000 97.1% - 0s 0 0 1.00000 0 163 35.00000 1.00000 97.1% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s 0 2 1.00000 0 163 31.00000 1.00000 96.8% - 0s H 27 27 23.0000000 2.59259 88.7% 39.3 0s * 81 41 50 17.0000000 2.59259 84.7% 21.4 0s * 111 50 17 16.0000000 2.61538 83.7% 24.4 0s H 137 55 15.0000000 4.84615 67.7% 22.9 0s * 193 75 13 14.0000000 6.25000 55.4% 23.7 0s Cutting planes: Gomory: 2 Explored 614 nodes (13739 simplex iterations) in 0.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%