Gurobi 5.6.3 (linux64) logging started Tue Oct 7 23:59:28 2014 Optimize a model with 23716 rows, 23563 columns and 93789 nonzeros Presolve time: 0.52s Presolved: 23716 rows, 23563 columns, 93789 nonzeros Variable types: 1 continuous, 23562 integer (23562 binary) Found heuristic solution: objective 1.0139663 Found heuristic solution: objective 0.9507808 Found heuristic solution: objective 0.8590271 Root relaxation: objective 9.547712e-02, 7314 iterations, 1.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09548 0 1369 0.85903 0.09548 88.9% - 2s H 0 0 0.2228559 0.09548 57.2% - 2s H 0 0 0.2192126 0.09548 56.4% - 2s 0 0 0.09773 0 1287 0.21921 0.09773 55.4% - 4s 0 0 0.09773 0 1376 0.21921 0.09773 55.4% - 4s 0 0 0.09817 0 1365 0.21921 0.09817 55.2% - 5s 0 0 0.09844 0 1317 0.21921 0.09844 55.1% - 5s 0 0 0.09862 0 1376 0.21921 0.09862 55.0% - 5s H 0 0 0.2160701 0.09862 54.4% - 5s 0 0 0.09891 0 1356 0.21607 0.09891 54.2% - 5s 0 0 0.09899 0 1380 0.21607 0.09899 54.2% - 5s 0 0 0.09899 0 1362 0.21607 0.09899 54.2% - 6s 0 0 0.09899 0 1338 0.21607 0.09899 54.2% - 6s H 0 0 0.2140850 0.09899 53.8% - 7s H 0 0 0.1687649 0.09899 41.3% - 7s 0 2 0.10264 0 1015 0.16876 0.10264 39.2% - 7s * 38 38 20 0.1670213 0.10467 37.3% 323 8s H 54 52 0.1636538 0.10467 36.0% 264 9s * 66 50 9 0.1630493 0.10467 35.8% 231 9s H 81 55 0.1567246 0.10523 32.9% 224 9s * 89 59 13 0.1563259 0.10523 32.7% 215 9s * 90 58 14 0.1557597 0.10523 32.4% 213 9s * 91 57 14 0.1554179 0.10523 32.3% 210 9s 102 46 infeasible 10 0.15542 0.10933 29.7% 244 10s Cutting planes: Gomory: 6 MIR: 11 Zero half: 1 Explored 149 nodes (51089 simplex iterations) in 10.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.554178787170e-01, best bound 1.554178787170e-01, gap 0.0%