Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:48:42 2014 Optimize a model with 5929 rows, 5853 columns and 23180 nonzeros Presolve time: 0.12s Presolved: 5929 rows, 5853 columns, 23180 nonzeros Variable types: 1 continuous, 5852 integer (5852 binary) Found heuristic solution: objective 0.9781151 Found heuristic solution: objective 0.9529524 Found heuristic solution: objective 0.8331002 Root relaxation: objective 1.473909e-01, 2423 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.14739 0 625 0.83310 0.14739 82.3% - 0s H 0 0 0.6267011 0.14739 76.5% - 0s H 0 0 0.2824645 0.14739 47.8% - 0s 0 0 0.14910 0 577 0.28246 0.14910 47.2% - 0s 0 0 0.14910 0 587 0.28246 0.14910 47.2% - 1s 0 0 0.15237 0 599 0.28246 0.15237 46.1% - 1s 0 0 0.15321 0 609 0.28246 0.15321 45.8% - 1s 0 0 0.15376 0 589 0.28246 0.15376 45.6% - 1s H 0 0 0.2622808 0.15376 41.4% - 1s 0 0 0.15595 0 566 0.26228 0.15595 40.5% - 1s 0 0 0.15596 0 575 0.26228 0.15596 40.5% - 1s 0 0 0.15596 0 551 0.26228 0.15596 40.5% - 1s H 0 0 0.2520936 0.15596 38.1% - 1s H 0 0 0.2456660 0.15596 36.5% - 1s 0 2 0.17551 0 361 0.24567 0.17551 28.6% - 1s * 24 17 15 0.2293190 0.21102 7.98% 165 1s * 25 14 14 0.2285959 0.21102 7.69% 159 1s * 26 11 15 0.2275731 0.21102 7.28% 153 1s Cutting planes: Gomory: 3 MIR: 3 Explored 38 nodes (14075 simplex iterations) in 1.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.275731357042e-01, best bound 2.275731357042e-01, gap 0.0%