Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:29:10 2014 Optimize a model with 3404 rows, 1723 columns and 8405 nonzeros Presolve removed 41 rows and 0 columns Presolve time: 0.12s Presolved: 3363 rows, 1723 columns, 8364 nonzeros Variable types: 1 continuous, 1722 integer (1722 binary) Found heuristic solution: objective 1.1099009 Found heuristic solution: objective 0.9463581 Found heuristic solution: objective 0.8192660 Root relaxation: objective 8.853006e-03, 2304 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00885 0 1512 0.81927 0.00885 98.9% - 0s H 0 0 0.5174231 0.00885 98.3% - 0s 0 0 0.01437 0 873 0.51742 0.01437 97.2% - 0s 0 0 0.08534 0 425 0.51742 0.08534 83.5% - 0s H 0 0 0.4202308 0.08534 79.7% - 0s 0 0 0.14746 0 333 0.42023 0.14746 64.9% - 0s H 0 0 0.3718110 0.14746 60.3% - 0s H 0 0 0.3683864 0.14746 60.0% - 0s 0 1 0.14948 0 333 0.36839 0.14948 59.4% - 2s H 1 1 0.3416244 0.14948 56.2% 452 2s H 4 2 0.3242488 0.20190 37.7% 113 2s H 5 3 0.3162756 0.20701 34.5% 90.4 2s H 9 6 0.3017451 0.22555 25.3% 50.2 3s H 18 11 0.2869730 0.23825 17.0% 25.1 3s * 19 10 9 0.2705068 0.27051 0.00% 255 3s Cutting planes: Gomory: 3 MIR: 8 Zero half: 3 Explored 20 nodes (15302 simplex iterations) in 3.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.705067525418e-01, best bound 2.705067525418e-01, gap 0.0%