Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:47:01 2014 Optimize a model with 5625 rows, 5551 columns and 21978 nonzeros Presolve time: 0.13s Presolved: 5625 rows, 5551 columns, 21978 nonzeros Variable types: 1 continuous, 5550 integer (5550 binary) Found heuristic solution: objective 1.2974589 Found heuristic solution: objective 0.9481713 Found heuristic solution: objective 0.6592056 Root relaxation: objective 1.444488e-01, 2396 iterations, 0.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.14445 0 560 0.65921 0.14445 78.1% - 0s H 0 0 0.5070370 0.14445 71.5% - 0s H 0 0 0.2553403 0.14445 43.4% - 0s 0 0 0.15664 0 471 0.25534 0.15664 38.7% - 0s 0 0 0.15664 0 435 0.25534 0.15664 38.7% - 0s H 0 0 0.2530452 0.15664 38.1% - 0s H 0 0 0.2496111 0.15664 37.2% - 0s 0 0 0.16622 0 480 0.24961 0.16622 33.4% - 0s 0 0 0.16891 0 506 0.24961 0.16891 32.3% - 0s 0 0 0.16972 0 522 0.24961 0.16972 32.0% - 0s 0 0 0.16972 0 530 0.24961 0.16972 32.0% - 0s 0 0 0.16972 0 495 0.24961 0.16972 32.0% - 0s H 0 0 0.2478522 0.16972 31.5% - 1s H 0 0 0.2433610 0.16972 30.3% - 1s H 0 0 0.2414594 0.16972 29.7% - 1s 0 2 0.17870 0 309 0.24146 0.17870 26.0% - 1s * 11 6 6 0.2388166 0.22594 5.39% 143 1s * 15 1 3 0.2376353 0.22953 3.41% 110 1s * 17 1 4 0.2312287 0.23123 0.00% 100 1s Cutting planes: Gomory: 3 MIR: 8 Zero half: 2 Explored 18 nodes (10781 simplex iterations) in 1.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.312286666602e-01, best bound 2.312286666602e-01, gap 0.0%