Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:03:00 2014 Optimize a model with 15932 rows, 8011 columns and 39605 nonzeros Presolve removed 89 rows and 0 columns Presolve time: 0.16s Presolved: 15843 rows, 8011 columns, 39516 nonzeros Variable types: 1 continuous, 8010 integer (8010 binary) Found heuristic solution: objective 1.0006544 Found heuristic solution: objective 0.9978942 Found heuristic solution: objective 0.8101698 Root relaxation: objective 4.232311e-03, 10050 iterations, 0.96 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00423 0 6793 0.81017 0.00423 99.5% - 1s H 0 0 0.4526322 0.00423 99.1% - 3s 0 0 0.00684 0 3192 0.45263 0.00684 98.5% - 5s 0 0 0.01143 0 3068 0.45263 0.01143 97.5% - 6s H 0 0 0.3362294 0.01143 96.6% - 7s H 0 0 0.3358476 0.01143 96.6% - 7s 0 0 0.01520 0 1861 0.33585 0.01520 95.5% - 7s 0 2 0.01524 0 1861 0.33585 0.01524 95.5% - 21s 4 4 0.04186 0 1008 0.33585 0.04186 87.5% 658 25s H 5 4 0.3005903 0.04290 85.7% 526 25s H 8 6 0.2883742 0.06243 78.4% 329 26s H 9 6 0.2832840 0.07253 74.4% 292 26s H 13 9 0.2477358 0.07671 69.0% 1444 36s H 16 10 0.2394342 0.14356 40.0% 1173 37s H 21 13 0.2338650 0.14882 36.4% 894 38s H 22 12 0.2335965 0.14882 36.3% 1216 38s * 40 17 35 0.2297761 0.16645 27.6% 864 39s H 49 19 0.2231657 0.16645 25.4% 750 39s * 51 20 41 0.2189653 0.16645 24.0% 729 39s * 61 15 33 0.2188003 0.18867 13.8% 623 39s 62 16 0.20155 33 181 0.21880 0.18867 13.8% 613 40s * 63 9 34 0.2160093 0.18867 12.7% 604 40s * 70 4 30 0.2131876 0.19243 9.74% 558 40s * 71 3 30 0.2122494 0.19243 9.34% 550 40s * 72 2 29 0.2049220 0.19243 6.10% 543 40s Cutting planes: Gomory: 7 MIR: 7 Zero half: 1 Explored 75 nodes (84144 simplex iterations) in 40.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.049220108907e-01, best bound 2.049220108907e-01, gap 0.0%