Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:11:19 2014 Optimize a model with 9025 rows, 8931 columns and 35438 nonzeros Presolve time: 0.14s Presolved: 9025 rows, 8931 columns, 35438 nonzeros Variable types: 1 continuous, 8930 integer (8930 binary) Found heuristic solution: objective 1.0312901 Found heuristic solution: objective 1.0277811 Found heuristic solution: objective 0.8721446 Root relaxation: objective 1.264622e-01, 3770 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.12646 0 776 0.87214 0.12646 85.5% - 0s H 0 0 0.4803004 0.12646 73.7% - 0s H 0 0 0.3115214 0.12646 59.4% - 0s 0 0 0.12725 0 812 0.31152 0.12725 59.2% - 1s 0 0 0.12725 0 778 0.31152 0.12725 59.2% - 1s 0 0 0.12725 0 820 0.31152 0.12725 59.2% - 1s H 0 0 0.3062341 0.12725 58.4% - 1s H 0 0 0.2969967 0.12725 57.2% - 1s 0 0 0.12843 0 832 0.29700 0.12843 56.8% - 1s 0 0 0.12922 0 832 0.29700 0.12922 56.5% - 2s H 0 0 0.2908273 0.12922 55.6% - 2s 0 0 0.13013 0 777 0.29083 0.13013 55.3% - 2s H 0 0 0.2810204 0.13013 53.7% - 2s 0 0 0.13083 0 766 0.28102 0.13083 53.4% - 2s H 0 0 0.2780793 0.13083 53.0% - 2s H 0 0 0.2578245 0.13083 49.3% - 2s 0 0 0.13107 0 777 0.25782 0.13107 49.2% - 2s H 0 0 0.2454791 0.13107 46.6% - 2s 0 2 0.13115 0 777 0.24548 0.13115 46.6% - 8s H 1 2 0.2159776 0.13115 39.3% 743 8s H 3 3 0.2121380 0.13801 34.9% 248 9s H 4 3 0.2098064 0.16246 22.6% 186 9s H 10 7 0.2093474 0.18348 12.4% 74.3 9s 12 10 0.18846 12 254 0.20935 0.18361 12.3% 720 10s * 27 9 21 0.2068641 0.18385 11.1% 346 10s * 28 6 21 0.2040146 0.18385 9.88% 333 10s * 30 1 13 0.2030674 0.19659 3.19% 322 10s Cutting planes: Gomory: 4 MIR: 12 Zero half: 3 Explored 32 nodes (22343 simplex iterations) in 10.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.030673944586e-01, best bound 2.030673944586e-01, gap 0.0%