Gurobi 5.6.3 (linux64) logging started Wed Oct 8 00:46:00 2014 Optimize a model with 29241 rows, 29071 columns and 115770 nonzeros Presolve time: 0.78s Presolved: 29241 rows, 29071 columns, 115770 nonzeros Variable types: 1 continuous, 29070 integer (29070 binary) Found heuristic solution: objective 0.9383979 Found heuristic solution: objective 0.9288167 Found heuristic solution: objective 0.8893910 Root relaxation: objective 9.529684e-02, 8348 iterations, 1.94 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09530 0 1518 0.88939 0.09530 89.3% - 3s H 0 0 0.8867363 0.09530 89.3% - 3s H 0 0 0.2870172 0.09530 66.8% - 3s 0 0 0.09559 0 1512 0.28702 0.09559 66.7% - 5s 0 0 0.09559 0 1518 0.28702 0.09559 66.7% - 7s H 0 0 0.2683017 0.09559 64.4% - 7s 0 0 0.09559 0 1536 0.26830 0.09559 64.4% - 8s H 0 0 0.2667808 0.09559 64.2% - 8s 0 0 0.09595 0 1481 0.26678 0.09595 64.0% - 8s H 0 0 0.2562927 0.09595 62.6% - 8s 0 0 0.09602 0 1487 0.25629 0.09602 62.5% - 9s 0 0 0.09607 0 1443 0.25629 0.09607 62.5% - 9s 0 0 0.09610 0 1453 0.25629 0.09610 62.5% - 9s H 0 0 0.2556273 0.09610 62.4% - 9s H 0 0 0.2475839 0.09610 61.2% - 10s 0 0 0.09614 0 1388 0.24758 0.09614 61.2% - 10s H 0 0 0.2214682 0.09614 56.6% - 10s 0 2 0.09614 0 1388 0.22147 0.09614 56.6% - 43s H 1 2 0.1541826 0.09614 37.6% 1380 45s H 4 3 0.1539626 0.12849 16.5% 345 47s H 4 3 0.1530652 0.12849 16.1% 345 47s H 5 4 0.1518355 0.12929 14.8% 276 47s H 7 4 0.1496643 0.13009 13.1% 197 47s H 8 5 0.1496505 0.14095 5.81% 172 47s H 11 6 0.1483921 0.14760 0.53% 1462 48s H 11 6 0.1480325 0.14760 0.29% 1462 48s Cutting planes: Clique: 1 MIR: 1 Zero half: 2 Explored 12 nodes (44640 simplex iterations) in 48.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.480324513425e-01, best bound 1.480324513425e-01, gap 0.0%