Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:27:24 2014 Optimize a model with 1712 rows, 871 columns and 4205 nonzeros Presolve removed 29 rows and 0 columns Presolve time: 0.05s Presolved: 1683 rows, 871 columns, 4176 nonzeros Variable types: 1 continuous, 870 integer (870 binary) Found heuristic solution: objective 1.0646618 Found heuristic solution: objective 1.0234939 Found heuristic solution: objective 0.9255223 Root relaxation: objective 1.400679e-02, 1182 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.01401 0 814 0.92552 0.01401 98.5% - 0s H 0 0 0.7120124 0.01401 98.0% - 0s 0 0 0.02107 0 628 0.71201 0.02107 97.0% - 0s H 0 0 0.6450988 0.02107 96.7% - 0s 0 0 0.03231 0 507 0.64510 0.03231 95.0% - 0s 0 0 0.24489 0 201 0.64510 0.24489 62.0% - 0s H 0 0 0.4828946 0.24489 49.3% - 0s 0 0 0.24989 0 224 0.48289 0.24989 48.3% - 0s H 0 0 0.4489182 0.24989 44.3% - 0s H 0 0 0.4447214 0.24989 43.8% - 0s 0 1 0.24989 0 224 0.44472 0.24989 43.8% - 1s H 1 1 0.3980189 0.24989 37.2% 209 1s H 3 2 0.3767381 0.30097 20.1% 69.7 1s * 4 2 11 0.3605585 0.36056 0.00% 52.2 1s Explored 4 nodes (7362 simplex iterations) in 1.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.605585040115e-01, best bound 3.605585040115e-01, gap 0.0%