Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:46:05 2012 Optimize a model with 433 rows, 246 columns and 1326 nonzeros Presolve time: 0.00s Presolved: 433 rows, 246 columns, 1326 nonzeros Variable types: 0 continuous, 246 integer (246 binary) Found heuristic solution: objective 115.0000000 Root relaxation: objective 0.000000e+00, 60 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 30 115.00000 0.00000 100% - 0s H 0 0 107.0000000 0.00000 100% - 0s H 0 0 106.0000000 0.00000 100% - 0s 0 0 1.31250 0 32 106.00000 1.31250 98.8% - 0s 0 0 1.37500 0 32 106.00000 1.37500 98.7% - 0s 0 0 1.37500 0 32 106.00000 1.37500 98.7% - 0s 0 0 1.43750 0 32 106.00000 1.43750 98.6% - 0s 0 0 1.43750 0 32 106.00000 1.43750 98.6% - 0s 0 0 1.43750 0 32 106.00000 1.43750 98.6% - 0s 0 0 1.43750 0 32 106.00000 1.43750 98.6% - 0s H 0 0 103.0000000 1.43750 98.6% - 0s 0 2 1.63611 0 32 103.00000 1.63611 98.4% - 0s * 109 74 20 101.0000000 15.75694 84.4% 39.5 0s * 311 205 24 100.0000000 24.92188 75.1% 37.6 0s * 333 209 18 99.0000000 24.97500 74.8% 37.1 0s * 334 208 18 98.0000000 24.97500 74.5% 37.0 0s H 351 206 93.0000000 25.04167 73.1% 36.8 0s H 405 219 90.0000000 28.00000 68.9% 37.0 0s H 513 262 86.0000000 31.25000 63.7% 36.0 0s 4460 942 60.36364 21 119 86.00000 54.80952 36.3% 29.0 5s H10098 1534 84.0000000 62.57895 25.5% 26.7 9s 10344 1545 67.60000 23 127 84.00000 63.00000 25.0% 26.7 10s 17878 1408 82.00000 25 135 84.00000 68.66667 18.3% 25.1 15s Cutting planes: Gomory: 1 Zero half: 3 Explored 25794 nodes (615180 simplex iterations) in 19.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.400000000000e+01, best bound 8.400000000000e+01, gap 0.0%