Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:02:51 2012 Optimize a model with 323 rows, 187 columns and 992 nonzeros Presolve time: 0.00s Presolved: 323 rows, 187 columns, 992 nonzeros Variable types: 0 continuous, 187 integer (187 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 54 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 26 86.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s 0 0 0.70000 0 28 82.00000 0.70000 99.1% - 0s 0 0 0.90000 0 28 82.00000 0.90000 98.9% - 0s 0 0 0.95305 0 44 82.00000 0.95305 98.8% - 0s 0 0 1.15000 0 28 82.00000 1.15000 98.6% - 0s 0 0 1.15000 0 28 82.00000 1.15000 98.6% - 0s 0 0 1.15000 0 28 82.00000 1.15000 98.6% - 0s 0 0 1.15000 0 28 82.00000 1.15000 98.6% - 0s H 0 0 78.0000000 1.15000 98.5% - 0s H 0 0 76.0000000 1.15000 98.5% - 0s H 0 0 73.0000000 1.15000 98.4% - 0s 0 2 1.23239 0 28 73.00000 1.23239 98.3% - 0s * 122 84 16 71.0000000 16.43478 76.9% 28.4 0s * 170 111 20 70.0000000 20.50000 70.7% 27.8 0s * 227 129 17 69.0000000 22.12000 67.9% 26.5 0s * 291 146 19 66.0000000 22.80000 65.5% 24.8 0s * 1343 211 23 65.0000000 35.61111 45.2% 23.8 1s * 2466 345 22 64.0000000 43.33333 32.3% 22.1 1s H 2485 327 62.0000000 43.40000 30.0% 22.1 1s Cutting planes: Gomory: 1 Zero half: 5 Explored 4962 nodes (100022 simplex iterations) in 3.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.200000000000e+01, best bound 6.200000000000e+01, gap 0.0%